This data set represents an updated Ecological Subsection Map for Northern Alaska. This revision focused on correcting coding errors identified in the 2012 revision. The 2012 revision was a major revision and it focused on completing the incompletely mapped portion of the southern NPRA, improving mapping of glacial and outwash deposits within the Brooks Foothills, and improving consistency with existing surficial and bedrock geology maps in northern Alaska. The 2012 revisions resulted in 525 ecological subsections, nested within 55 ecosections and 12 ecoregions covering 411,781 km2. Attributes for the polygons include information on physiography, generalized geology, lithology, and referenced information sources. Description of attributes is provided in the map documentation report. Can be downloaded at: catalog.northslope.org.

Beaufort Coastal Plain
FID | 0
FID_NOAK_S | 1
ECOREGION | Beaufort Coastal Plain
PHYSIOGRAP | Floodplain
LITHOLOGY | Silt, sand, gravel
SUBSECTION | Turner Lowland Floodplain
SECTION_ | Eastern Beaufort Coastal Plain
GEN_GEOL | Fluvial, young
SUBSECT_CO | TOLF
Soil_Lands | Gravelly Riverine
Elev_ave_N | 25
PRISM_ave_ | -11.3
Biome | Arctic
Eco_Landsc | Arctic Gravelly Riverine
FID_noak2 | 1
flag | 1
ORIG_FID | 2

Brooks Foothills
FID | 1
FID_NOAK_S | 2
ECOREGION | Brooks Foothills
PHYSIOGRAP | Lowland
LITHOLOGY | Peat, silt, sand, gravel
SUBSECTION | Katakturuk Lowland
SECTION_ | Upper Eastern Brooks Foothills
GEN_GEOL | Fluvial, old
SUBSECT_CO | KTKL
Soil_Lands | Peaty Lowland
Elev_ave_N | 111
PRISM_ave_ | -12.2
Biome | Arctic
Eco_Landsc | Arctic Peaty Lowland
FID_noak2 | 1
flag | 1
ORIG_FID | 3

Northern Brooks Range
FID | 2
FID_NOAK_S | 3
ECOREGION | Northern Brooks Range
PHYSIOGRAP | Floodplain
LITHOLOGY | Silt, sand, gravel
SUBSECTION | British Mountain Floodplains
SECTION_ | Northern British Mountains
GEN_GEOL | Fluvial, young
SUBSECT_CO | BRMF
Soil_Lands | Gravelly Riverine
Elev_ave_N | 344
PRISM_ave_ | -12.2
Biome | Arctic
Eco_Landsc | Arctic Gravelly Riverine
FID_noak2 | 1
flag | 1
ORIG_FID | 4

Brooks Foothills
ECOREGION | Brooks Foothills
PHYSIOGRAP | Upland
LITHOLOGY | Peat, rocky silt
SUBSECTION | Kongakut Uplands
SECTION_ | Lower Eastern Brook Foothills
GEN_GEOL | Colluvium, upland
SUBSECT_CO | KNGU
Soil_Lands | Rocky Upland
Eco_Landsc | Arctic Rocky Upland

Northern Brooks Range
ECOREGION | Northern Brooks Range
PHYSIOGRAP | Floodplain
LITHOLOGY | Silt, sand, gravel
SUBSECTION | British Mountain Floodplains
SECTION_ | Northern British Mountains
GEN_GEOL | Fluvial, young
SUBSECT_CO | BRMF
Soil_Lands | Gravelly Riverine
Eco_Landsc | Arctic Gravelly Riverine

Beaufort Coastal Plain
ECOREGION | Beaufort Coastal Plain
PHYSIOGRAP | Coastal Plain
LITHOLOGY | Peat, pebbly silty sand
SUBSECTION | Clarence Coastal Plain
SECTION_ | Eastern Beaufort Coastal Plain
GEN_GEOL | Marine, old
SUBSECT_CO | CLCP
Soil_Lands | Peaty Lowland
Eco_Landsc | Arctic Peaty Lowland

Yukon-Old Crow Basin
ECOREGION | Yukon-Old Crow Basin
SUBSECTION | Sheenjek Lower Floodplain
SECTION_ | Porcupine Lowland
SUBSECT_CO | SJLF
Biome | Boreal
Eco_Landsc | Boreal Gravelly Riverine

Sheenjek Hills
ECOREGION | Sheenjek Hills
PHYSIOGRAP | Lowland
LITHOLOGY | Peat, silt, sand, gravel
SUBSECTION | Sheenjek Middle Lowland
SECTION_ | Sheenjek Hills
GEN_GEOL | Fluvial, old
SUBSECT_CO | SJIL
Soil_Lands | Peaty Lowland
PRISM_ave_ | -6
Biome | Boreal
Eco_Landsc | Boreal Peaty Lowland

Yukon-Old Crow Basin
ECOREGION | Yukon-Old Crow Basin
PHYSIOGRAP | Lowland
LITHOLOGY | Peat, silt, sand, gravel
SUBSECTION | Sheenjek Lower Lowland
SECTION_ | Porcupine Lowland
GEN_GEOL | Fluvial, old
SUBSECT_CO | SJLL
Biome | Boreal
Eco_Landsc | Boreal Peaty Lowland

Sheenjek Hills
ECOREGION | Sheenjek Hills
SUBSECTION | Coleen Mountain Floodplain
SECTION_ | Sheenjek Hills
SUBSECT_CO | COML
Eco_Landsc | Boreal Gravelly Riverine

North Ogilvie Mountains
ECOREGION | North Ogilvie Mountains
SUBSECTION | Salmon Mountain Floodplains
SECTION_ | North Ogilve Mountains
SUBSECT_CO | SLMF
Eco_Landsc | Boreal Gravelly Riverine

Yukon-Old Crow Basin
ECOREGION | Yukon-Old Crow Basin
SUBSECTION | Bluefish Floodplain
SECTION_ | Old Crow Flats
SUBSECT_CO | BLUF

Northern Brooks Range
ECOREGION | Northern Brooks Range
SUBSECTION | Firth Mountain Floodplain
SECTION_ | Northern British Mountains
SUBSECT_CO | FMF

SUBSECTION | British Mountain Floodplains
SUBSECT_CO | BRMF

SUBSECTION | Kongakut Mountain Floodplain
SUBSECT_CO | KNGF

Beaufort Coastal Plain
ECOREGION | Beaufort Coastal Plain
PHYSIOGRAP | Coastal Plain
LITHOLOGY | Peat, pebbly silty sand
SUBSECTION | Clarence Coastal Plain
SECTION_ | Eastern Beaufort Coastal Plain
GEN_GEOL | Marine, old
SUBSECT_CO | CLCP
Eco_Landsc | Arctic Peaty Lowland

Brooks Foothills
ECOREGION | Brooks Foothills
PHYSIOGRAP | Upland
LITHOLOGY | Silt
SUBSECTION | Tamayariak Uplands
SECTION_ | Lower Eastern Brook Foothills
GEN_GEOL | Eolian silt
SUBSECT_CO | TYU
Soil_Lands | Silty Upland
Eco_Landsc | Arctic Silty Upland

SUBSECTION | Crow Floodplain
SECTION_ | Old Crow Flats
SUBSECT_CO | CRWF

SUBSECTION | Old Crow Flats
SECTION_ | Old Crow Flats
SUBSECT_CO | OCF
Eco_Landsc | Boreal Peaty Lowland

Southern Brooks Range
ECOREGION | Southern Brooks Range
PHYSIOGRAP | Mountain, Rounded
LITHOLOGY | Sedimentary, noncarbonate
SUBSECTION | Mancha Mountains
SECTION_ | Southern British Mountains
GEN_GEOL | Sedimentary, noncarbonate
SUBSECT_CO | MANM
Soil_Lands | Rocky Acidic Alpine
Eco_Landsc | Boreal Rocky Acidic Alpine

PHYSIOGRAP | Coastal Plain
LITHOLOGY | Peat, pebbly silty sand
SUBSECTION | Jago Coastal Plain
GEN_GEOL | Marine, old
SUBSECT_CO | JACP

SUBSECTION | Kasegaluk Lower Floodplains
SECTION_ | Western Beaufort Coastal Plain
SUBSECT_CO | KSLF
Soil_Lands | Sandy Riverine
PRISM_ave_ | -11
Eco_Landsc | Arctic Sandy Riverine

SUBSECTION | Utukok Upper Floodplain
SECTION_ | Upper Western Brooks Foothills
SUBSECT_CO | UTUF

PHYSIOGRAP | Upland
LITHOLOGY | Sedimentary, noncarbonate
SUBSECTION | Nigu Foothills
SECTION_ | Upper Western Brooks Foothills
GEN_GEOL | Sedimentary, noncarbonate
SUBSECT_CO | NGH
Soil_Lands | Rocky Acidic Alpine
Eco_Landsc | Arctic Rocky Acidic Alpine

LITHOLOGY | Sedimentary, noncarbonate
SUBSECTION | Kuna Foothills
SECTION_ | Upper Western Brooks Foothills
GEN_GEOL | Sedimentary, noncarbonate
SUBSECT_CO | KUNF
Soil_Lands | Rocky Acidic Alpine
Eco_Landsc | Arctic Rocky Acidic Alpine

SUBSECTION | Franklin Mountain Floodplains
SECTION_ | Romanzof Mountains
SUBSECT_CO | FRMF

PHYSIOGRAP | Mountain, Rugged
LITHOLOGY | Instrusive, mafic
SUBSECTION | Guilbeau Mountains
SECTION_ | Franklin Mountains
GEN_GEOL | Intrusive, mafic
SUBSECT_CO | GULM
Soil_Lands | Rocky Circumneutral Alpine
Eco_Landsc | Arctic Rocky Circumneutral Alpine

SUBSECTION | Sadlerochit-Hulahula Lowland
SUBSECT_CO | SHL

Beaufort Sea Coast
ECOREGION | Beaufort Sea Coast
PHYSIOGRAP | Coast
LITHOLOGY | Mud
SUBSECTION | Hulahula Delta
SECTION_ | Leffingwell Coast
GEN_GEOL | Marine, young
SUBSECT_CO | HUD
Soil_Lands | Silty Coast
Eco_Landsc | Arctic Silty Coast

SUBSECTION | Jago Coastal Plain
SUBSECT_CO | JACP

PRISM_ave_ | -12

SUBSECT_CO | JGCP

SUBSECTION | Camden Bay Lowland
SUBSECT_CO | CBL

SUBSECTION | Canning Upper Coastal Plain
SECTION_ | Central Beaufort Coastal Plain
GEN_GEOL | Glaciofluvial, old
SUBSECT_CO | CNUP

SUBSECTION | Camden Bay Coastal Plain
SUBSECT_CO | CBCP

SUBSECTION | Katakturuk Lowland
SECTION_ | Upper Eastern Brooks Foothills
SUBSECT_CO | KTKL

Southern Brooks Range
ECOREGION | Southern Brooks Range
PHYSIOGRAP | Mountain, Rugged
LITHOLOGY | Intrusive, felsic
SUBSECTION | Horace Mountains
SECTION_ | Endicott Southern Mountains
GEN_GEOL | Intrusive, felsic
SUBSECT_CO | HORM
Eco_Landsc | Boreal Rocky Acidic Alpine

Southern Brooks Range
ECOREGION | Southern Brooks Range
PHYSIOGRAP | Mountain, Rugged
SUBSECTION | Dietrich Mountains
SECTION_ | Endicott Southern Mountains
SUBSECT_CO | DIEM
Eco_Landsc | Boreal Rocky Acidic Alpine

LITHOLOGY | Metamorphic, noncarbonate
SUBSECTION | McLellan Mountains
SECTION_ | Endicott Southern Mountains
GEN_GEOL | Metamorphic, noncarbonate
SUBSECT_CO | MCLM

LITHOLOGY | Silt
SUBSECTION | Camden Uplands
GEN_GEOL | Eolian silt
SUBSECT_CO | CBU
Soil_Lands | Silty Upland
Eco_Landsc | Arctic Silty Upland

SUBSECTION | Flaxman Upland Floodplain
SECTION_ | Lower Eastern Brook Foothills
SUBSECT_CO | FXUF

SUBSECTION | Camden Bay Floodplains
SUBSECT_CO | CBF

SUBSECTION | Sadlerochit Foothill Floodplains
SUBSECT_CO | SAFF

PHYSIOGRAP | Glaciated Upland
LITHOLOGY | Peat, silt, diamicton
SUBSECTION | Canning Old Glaciated Uplands
SECTION_ | Upper Central Brooks Foothills
GEN_GEOL | Glacial, old
SUBSECT_CO | CNOG
Soil_Lands | Peaty Glaciated Upland
Eco_Landsc | Arctic Peaty Glaciated Upland

SUBSECTION | Shaviovik Coastal Plain
SECTION_ | Central Beaufort Coastal Plain
SUBSECT_CO | SVCP

LITHOLOGY | Silt
SUBSECTION | Sagavanirktok Silty Uplands
SECTION_ | Lower Central Brooks Foothills
GEN_GEOL | Eolian silt
SUBSECT_CO | SGSU
Soil_Lands | Silty Upland
Eco_Landsc | Arctic Silty Upland

PHYSIOGRAP | Glaciated Upland
LITHOLOGY | Peat, silt, diamicton
SUBSECTION | Canning Old Glaciated Uplands
GEN_GEOL | Glacial, old
SUBSECT_CO | CNOG
Soil_Lands | Peaty Glaciated Upland
Eco_Landsc | Arctic Peaty Glaciated Upland

LITHOLOGY | Peat, rocky silt
SUBSECTION | Sadlerochit Foothills
GEN_GEOL | Colluvium, upland
SUBSECT_CO | SAF
Soil_Lands | Rocky Upland
Eco_Landsc | Arctic Rocky Upland

SUBSECTION | Kuna Foothills
SUBSECT_CO | KUNF
Eco_Landsc | Arctic Rocky Acidic Alpine

SUBSECTION | Kuna Foothills
SUBSECT_CO | KUNF

PHYSIOGRAP | Glaciated Valley
LITHOLOGY | Diamicton
SUBSECTION | DeLong Young Glaciated Valleys
SECTION_ | DeLong Mountains
GEN_GEOL | Glacial, young
SUBSECT_CO | DLGV
Soil_Lands | Rocky Glaciated Upland
Eco_Landsc | Arctic Rocky Glaciated Upland

SUBSECTION | Demarcation Lower Floodplain
SUBSECT_CO | DMLF

SUBSECTION | Sadlerochit Lowland Floodplain
SUBSECT_CO | SALF

SUBSECTION | Okpilak Lowland Floodplain
SUBSECT_CO | OKLF

PHYSIOGRAP | Glaciated Upland
LITHOLOGY | Peat, silt, diamicton
SUBSECTION | Jago Old Glaciated Uplands
GEN_GEOL | Glacial, old
SUBSECT_CO | JAOG
Soil_Lands | Peaty Glaciated Upland
Eco_Landsc | Arctic Peaty Glaciated Upland

LITHOLOGY | Peat, rocky silt
SUBSECTION | Jago Hills
GEN_GEOL | Colluvium, upland
SUBSECT_CO | JAH
Soil_Lands | Rocky Upland
Eco_Landsc | Arctic Rocky Upland

SUBSECTION | Hulahula-Aichilik Uplands
SUBSECT_CO | HAU

SUBSECTION | Old Crow Flats
SUBSECT_CO | OCF

SUBSECTION | Shublik Hills
SUBSECT_CO | SBH

SUBSECTION | Aichilik Coastal Plain
SUBSECT_CO | ACF

PHYSIOGRAP | Mountain, Rounded
SUBSECTION | Bathtub Mountains
SUBSECT_CO | BTHM

SUBSECTION | Firth Mountain Floodplain
SECTION_ | Southern British Mountains
SUBSECT_CO | FMF

SUBSECTION | Clarence Lowland Floodplain
SUBSECT_CO | CLLF

SUBSECTION | Clarence Coastal Plain
SUBSECT_CO | CLCP

SUBSECTION | Komakuk Uplands
SUBSECT_CO | KOMU

SUBSECTION | Aichilik-Kongakut Lowland Floodplains
SUBSECT_CO | ACKLF

SUBSECTION | Hulahula Lowland Floodplain
SUBSECT_CO | HULF

SUBSECTION | Okpilak Foothill Floodplain
SUBSECT_CO | OKFF

SUBSECTION | Franklin Mountain Floodplains
SECTION_ | Franklin Mountains
SUBSECT_CO | FRMF

SUBSECTION | Jago Foothill Floodplain
SUBSECT_CO | JAFF

LITHOLOGY | Diamicton
SUBSECTION | Sagavanirktok Young Glaciated Uplands
SECTION_ | Upper Central Brooks Foothills
GEN_GEOL | Glacial, young
SUBSECT_CO | SGYG
Soil_Lands | Rocky Glaciated Upland
Eco_Landsc | Arctic Rocky Glaciated Upland

SUBSECTION | Sagavanirktok Young Glaciated Uplands
SECTION_ | Upper Central Brooks Foothills
SUBSECT_CO | SGYG

SUBSECTION | Aichilik Foothill Floodplain
SUBSECT_CO | AFF

SUBSECTION | Komakuk Coastal Plain
SUBSECT_CO | KMCP

LITHOLOGY | Sedimentary, mixed
SUBSECTION | Malcolm Mountains
GEN_GEOL | Sedimentary, mixed
SUBSECT_CO | MLM
Soil_Lands | Rocky Acidic-Alkaline Alpine
Eco_Landsc | Arctic Rocky Acidic-Alkaline Alpine

SUBSECTION | Malcolm Lower Floodplain
SUBSECT_CO | MLLF

SUBSECTION | Canning Young Glaciated Uplands
SUBSECT_CO | CNYG

SUBSECTION | Nigu Mountain Floodplains
SECTION_ | DeLong Mountains
SUBSECT_CO | NGMF

PHYSIOGRAP | Mountain, Rounded
SUBSECTION | Aickilik Mountains
SUBSECT_CO | ACM

LITHOLOGY | Sedimentary, mixed
SUBSECTION | Ekaluakat Mountains
GEN_GEOL | Sedimentary, mixed
SUBSECT_CO | EKM
Soil_Lands | Rocky Acidic-Alkaline Alpine
Eco_Landsc | Arctic Rocky Acidic-Alkaline Alpine

LITHOLOGY | Instrusive, mafic
SUBSECTION | Reiser Mountains
GEN_GEOL | Intrusive, mafic
SUBSECT_CO | REM
Soil_Lands | Rocky Circumneutral Alpine
Eco_Landsc | Arctic Rocky Circumneutral Alpine

LITHOLOGY | Sedimentary, carbonate
SUBSECTION | Egaksrak Mountains
GEN_GEOL | Sedimentary, carbonate
SUBSECT_CO | EGKM
Soil_Lands | Rocky Alkaline Alpine
Eco_Landsc | Arctic Rocky Alkaline Alpine

SUBSECTION | Koyukuk Mountain Floodplains
SUBSECT_CO | KYMF

PHYSIOGRAP | Lacustrine
LITHOLOGY | Water
SUBSECTION | Kobuk Old Glaciated Valleys
SECTION_ | Kobuk Mountains
GEN_GEOL | Freshwater
SUBSECT_CO | KBGV
Soil_Lands | Freshwater
Eco_Landsc | Boreal Freshwater

SUBSECTION | Kobuk Mountain Floodplains
SECTION_ | Kobuk Mountains
SUBSECT_CO | KBMF

SUBSECTION | Alutunitok Hills
SECTION_ | Wulik Foothills
SUBSECT_CO | ATNH

SUBSECTION | Natmotirak Foothills
SECTION_ | Noatak Mountains
SUBSECT_CO | NATMF

SUBSECTION | Chandalar Lower Floodplain
SECTION_ | Sheenjek Mountains
SUBSECT_CO | CHLF

Kobuk Ridges and Valley
ECOREGION | Kobuk Ridges and Valley
SUBSECTION | Koyukuk Middle Floodplain
SECTION_ | Koyukuk Uplands
SUBSECT_CO | KYIF

PHYSIOGRAP | Lacustrine
LITHOLOGY | Water
SUBSECTION | Alatna Young Glaciated Valley
GEN_GEOL | Freshwater
SUBSECT_CO | ALYG
Soil_Lands | Freshwater
Eco_Landsc | Boreal Freshwater

PHYSIOGRAP | Glaciated Valley
SUBSECTION | Alatna Young Glaciated Valleys
SUBSECT_CO | ALYG
Eco_Landsc | Boreal Rocky Glaciated Upland

SUBSECTION | Wulik Lower Floodplains
SECTION_ | Krustenstern Coastal Plain
SUBSECT_CO | WLLF

SUBSECTION | Kobuk Young Glaciated Valleys
SUBSECT_CO | KBYV
Eco_Landsc | Boreal Rocky Glaciated Upland

Sheenjek Hills
ECOREGION | Sheenjek Hills
SUBSECTION | Christian Uplands
SECTION_ | Sheenjek Hills
SUBSECT_CO | CHRU
Eco_Landsc | Boreal Rocky Upland

SUBSECTION | Christian Uplands
SUBSECT_CO | CHRU
Eco_Landsc | Boreal Rocky Upland

SUBSECTION | Sheenjek Upper Floodplain
SECTION_ | Sheenjek Mountains
SUBSECT_CO | SJUF

SUBSECTION | Chandalar Mountains
SECTION_ | Chandalar Mountains
SUBSECT_CO | CHM

Kobuk Ridges and Valley
ECOREGION | Kobuk Ridges and Valley
SUBSECTION | Lower Noatak Lowland
SECTION_ | Noatak Lowland
SUBSECT_CO | LNL

SUBSECTION | Eli Foothills
SECTION_ | Baird Northern Mountains
SUBSECT_CO | ELIF

Southern Chukchi Coast
ECOREGION | Southern Chukchi Coast
PHYSIOGRAP | Coast
LITHOLOGY | Gravel, mud
SUBSECTION | Krusenstern Lagoon
SECTION_ | Krusenstern Coast
GEN_GEOL | Marine, young
SUBSECT_CO | KRSL
Soil_Lands | Gravelly Coast
Eco_Landsc | Arctic Gravelly Coast

Southern Chukchi Coast
ECOREGION | Southern Chukchi Coast
PHYSIOGRAP | Coast
LITHOLOGY | Gravel, mud
SUBSECTION | Sheshalik Lagoon
SECTION_ | Kotzebue Coast
GEN_GEOL | Marine, young
Soil_Lands | Gravelly Coast
Eco_Landsc | Arctic Gravelly Coast

Beaufort Sea Coast
ECOREGION | Beaufort Sea Coast
LITHOLOGY | Gravel, mud
SUBSECTION | Komakuk Coast
SECTION_ | Icy Coast
SUBSECT_CO | KOMC
Soil_Lands | Gravelly Coast
Eco_Landsc | Arctic Gravelly Coast

SUBSECTION | Okpilak Uplands
SUBSECT_CO | OKU

SUBSECTION | Itkillik Old Glaciated Uplands
SUBSECT_CO | ITKOG

SUBSECTION | Ikalukrok Foothills
SECTION_ | Wulik Foothills
SUBSECT_CO | IKRLF

SUBSECTION | Sagavanirktok Foothills
SUBSECT_CO | SGF

Kobuk Ridges and Valley
ECOREGION | Kobuk Ridges and Valley
SUBSECTION | Noatak Lower Floodplain
SECTION_ | Kiana Hills
SUBSECT_CO | NTLF

SUBSECTION | Kugrak Crest Mountains
SUBSECT_CO | KUGM

SUBSECTION | Oumalik Upper Coastal Plain
SECTION_ | Western Beaufort Coastal Plain
SUBSECT_CO | OUCP
Soil_Lands | Silty Lowland
Eco_Landsc | Arctic Silty Lowland

SUBSECTION | Oumalik Upper Coastal Plain
SUBSECT_CO | OUCP
Soil_Lands | Silty Lowland
Eco_Landsc | Arctic Silty Lowland

SUBSECTION | Topagorak Floodplain
SUBSECT_CO | TPGF
Soil_Lands | Sandy Riverine
Eco_Landsc | Arctic Sandy Riverine

SUBSECTION | Topagorak Floodplain
SUBSECT_CO | TPGF

Beaufort Sea Coast
ECOREGION | Beaufort Sea Coast
LITHOLOGY | Mud
SUBSECTION | Ikpukpuk-Meade Deltas
SECTION_ | Ikpikpuk Coast
SUBSECT_CO | IMD
Soil_Lands | Silty Coast
Eco_Landsc | Arctic Silty Coast

LITHOLOGY | Mud
SUBSECTION | Ikpukpuk-Meade Deltas
SECTION_ | Ikpikpuk Coast
SUBSECT_CO | IMD
Soil_Lands | Silty Coast
Eco_Landsc | Arctic Silty Coast

SUBSECTION | Ikpikpuk Lower Coastal Plain
SUBSECT_CO | IPLCP

SUBSECTION | East Chandalar Mountain Floodplain
SECTION_ | Romanzof Mountains
SUBSECT_CO | ECMF

SUBSECTION | Sagavanirktok Uplands
SUBSECT_CO | SGU

SUBSECTION | Sagavanirktok Young Glaciated Uplands
SUBSECT_CO | SGYG

SUBSECTION | Hulahula Foothill Floodplain
SUBSECT_CO | HUFF

SUBSECTION | Jago Lowland Floodplain
SUBSECT_CO | JALF

LITHOLOGY | Sedimentary, carbonate
SUBSECTION | Wind Mountains
GEN_GEOL | Sedimentary, carbonate
SUBSECT_CO | WDM
Soil_Lands | Rocky Alkaline Alpine
Eco_Landsc | Boreal Rocky Alkaline Alpine

SUBSECTION | Killik Old Glaciated Uplands
SUBSECT_CO | KLKOG

SUBSECTION | Nukatpiat Mountains
SECTION_ | Endicott Northern Mountains
SUBSECT_CO | NKTM

SUBSECTION | Ipnavik Mountains
SECTION_ | Endicott Northern Mountains
SUBSECT_CO | IVNM

SUBSECTION | Upper Noatak Old Glaciated Uplands
SECTION_ | Noatak Basin
SUBSECT_CO | UNOG

SUBSECTION | DeLong Northern Mountains
SUBSECT_CO | NGMF

SUBSECTION | Iggiruk Young Glaciated Uplands
SECTION_ | Noatak Basin
SUBSECT_CO | IGGYG

SUBSECTION | Anisak Young Glaciated Uplands
SECTION_ | Noatak Basin
SUBSECT_CO | ANYG

SUBSECTION | Kivalina Lowland
SECTION_ | Wulik Foothills
SUBSECT_CO | KIVL

SUBSECTION | Kivalina Lowland
SUBSECT_CO | KIVL

SUBSECTION | Anisak Old Glaciated Uplands
SUBSECT_CO | ANSOG

SUBSECTION | Nigu Old Glaciated Uplands
SUBSECT_CO | NGOG

SUBSECTION | Canning Lowland
SUBSECT_CO | CNL

SUBSECTION | Canning Lowland
SECTION_ | Lower Central Brooks Foothills
SUBSECT_CO | CNL

SUBSECTION | Sagavanirktok Lowland
GEN_GEOL | Glaciofluvial, old
SUBSECT_CO | SGL

SUBSECTION | Ikpikpuk Lower Floodplain
SUBSECT_CO | IPLF

SUBSECTION | Endicott Young Glaciated Valleys
SUBSECT_CO | ENYG

LITHOLOGY | Coastal Water
SUBSECTION | Blow Lagoon
SECTION_ | Icy Coast
GEN_GEOL | Coastal water
SUBSECT_CO | BLWL
Soil_Lands | Coastal Water
Eco_Landsc | Arctic Coastal Water

SUBSECTION | Utukok Mountains
SUBSECT_CO | UTKM

SUBSECTION | Utukok Hills
SUBSECT_CO | UTH

SUBSECTION | DeLong Northern Mountains

SUBSECTION | Utukok Mountains

SUBSECTION | Ipewik Uplands
SUBSECT_CO | IPWU

SUBSECTION | Nuka Uplands
SUBSECT_CO | NUKU

SUBSECTION | Itkillik Upper Lowland
GEN_GEOL | Glaciofluvial, old
SUBSECT_CO | ITKL

SUBSECTION | Itkillik Foothills
SUBSECT_CO | ITKF

SUBSECTION | Itkillik Upper Lowland
SUBSECT_CO | ITKL

SUBSECTION | Hope Coastal Plain
SECTION_ | Lower Western Brooks Foothills
SUBSECT_CO | HOCP

SUBSECTION | Romanzof Mountain Floodplains
SECTION_ | Romanzof Mountains
SUBSECT_CO | RMMF

SUBSECTION | Sheenjek Mountain Floodplain
SUBSECT_CO | SJMF

SUBSECTION | Sagavanirktok Young Glaciated Valleys
SECTION_ | Philip Smith Northern Mountains

SUBSECTION | East Chandalar Old Glaciated Uplands
SUBSECT_CO | ECOG
Eco_Landsc | Boreal Peaty Glaciated Upland

SUBSECTION | East Chandalar Mountain Floodplain
SUBSECT_CO | ECMF

SUBSECTION | East Chandalar Young Glaciated Valleys
SUBSECT_CO | ECYV

SUBSECTION | Nigu Mountain Floodplains

SUBSECTION | Sheenjek Lowland
SUBSECT_CO | SJL

SUBSECTION | East Chandalar Young Glaciated Uplands
SUBSECT_CO | ECYG

SUBSECTION | East Chandalar Middle Floodplain
SUBSECT_CO | ECIF

SUBSECTION | Old Woman Hills
SUBSECT_CO | OWH

SUBSECTION | Sheenjek Young Glaciated Valleys
SUBSECT_CO | SJYV

LITHOLOGY | Sedimentary, carbonate
SUBSECTION | Ivishak Crest Mountains
GEN_GEOL | Sedimentary, carbonate
SUBSECT_CO | IVCM
Soil_Lands | Rocky Alkaline Alpine
Eco_Landsc | Arctic Rocky Alkaline Alpine

SUBSECTION | Sourthern Wind Mountains
SUBSECT_CO | SWM
Eco_Landsc | Boreal Rocky Alkaline Alpine

SUBSECTION | Keche Mountains
SECTION_ | Philip Smith Northern Mountains
SUBSECT_CO | KECM
Eco_Landsc | Arctic Rocky Alkaline Alpine

SUBSECTION | Keche Mountains
SECTION_ | Philip Smith Northern Mountains
SUBSECT_CO | KECM

SUBSECTION | Keche Mountains
SUBSECT_CO | KECM

SUBSECTION | Kongakut Upper Mountains
SUBSECT_CO | UKM

SUBSECTION | Nigeruk Plain
SECTION_ | Kobuk Uplands
SUBSECT_CO | NGRP
Eco_Landsc | Boreal Silty Lowland

SUBSECTION | Kaluktavik Uplands
SUBSECT_CO | KLVU

SUBSECTION | Nakolik Mountains
SECTION_ | Baird Northern Mountains
SUBSECT_CO | NAKM

SUBSECTION | Wulik Coastal Plain
SECTION_ | Krustenstern Coastal Plain
SUBSECT_CO | WLCP

LITHOLOGY | Metamorphic, noncarbonate
SUBSECTION | Anaktok Mountains
SECTION_ | Baird Northern Mountains
GEN_GEOL | Metamorphic, noncarbonate
SUBSECT_CO | ANKM

SUBSECTION | Kunyanak Mountains
SECTION_ | Noatak Mountains
SUBSECT_CO | KNYM

PHYSIOGRAP | Lacustrine
LITHOLOGY | Water
SUBSECTION | Killik Young Glaciated Valleys
GEN_GEOL | Freshwater
SUBSECT_CO | KLGV
Soil_Lands | Freshwater
Eco_Landsc | Arctic Freshwater

SUBSECTION | Anaktuvuk Upper Floodplain
SUBSECT_CO | ANKUF

SUBSECTION | Akiak Floodplains
SUBSECT_CO | AKFL

SUBSECTION | Ipewik Mountains
SUBSECT_CO | IPWM

SUBSECTION | Killik Lowland
SUBSECT_CO | KLKL

SUBSECTION | Sheenjek Young Glaciated Uplands
SUBSECT_CO | SJYG

SUBSECTION | Sheenjek Old Glaciated Uplands
SUBSECT_CO | SJOG

LITHOLOGY | Coastal Water
SUBSECTION | Canning Nearshore Water
SECTION_ | Leffingwell Coast
GEN_GEOL | Coastal water
SUBSECT_CO | CNW
Soil_Lands | Coastal Water
Eco_Landsc | Arctic Coastal Water

Beaufort Sea
ECOREGION | Beaufort Sea
PHYSIOGRAP | Marine Water
LITHOLOGY | Marine Water
SUBSECTION | Eastern Beaufort Offshore Water (5-10 m)
SECTION_ | Eastern Beaufort Offshore Water
GEN_GEOL | Marine water
SUBSECT_CO | EBOW
Soil_Lands | Marine Water
Eco_Landsc | Arctic Marine Water

Beaufort Sea
ECOREGION | Beaufort Sea
PHYSIOGRAP | Marine Water
LITHOLOGY | Marine Water
SUBSECTION | Eastern Beaufort Offshore Water (10-20 m)
SECTION_ | Eastern Beaufort Offshore Water
GEN_GEOL | Marine water
SUBSECT_CO | EBOW
Soil_Lands | Marine Water
Eco_Landsc | Arctic Marine Water

Beaufort Sea
ECOREGION | Beaufort Sea
PHYSIOGRAP | Marine Water
LITHOLOGY | Marine Water
SUBSECTION | Western Beaufort Offshore Water (5-10 m)
SECTION_ | Western Beaufort Offshore Water
GEN_GEOL | Marine water
SUBSECT_CO | WBOW
Soil_Lands | Marine Water
Eco_Landsc | Arctic Marine Water

SUBSECTION | Central Beaufort Offshore Water (5-10 m)
SECTION_ | Central Beaufort Offshore Water
SUBSECT_CO | CBOW

SUBSECTION | Western Beaufort Offshore Water (10-20 m)
SECTION_ | Western Beaufort Offshore Water
SUBSECT_CO | WBOW

SUBSECTION | Central Beaufort Offshore Water (10-20 m)
SECTION_ | Central Beaufort Offshore Water
SUBSECT_CO | CBOW

SUBSECTION | Kanayut Mountains
SUBSECT_CO | KNYM

SUBSECTION | Anaktuvuk Mountains
SUBSECT_CO | ANKM

SUBSECTION | Kurupa Floodplain
SUBSECT_CO | KRPF

SUBSECTION | Kurupa Young Glaciated Valleys
SUBSECT_CO | KRPYG

SUBSECTION | Killik Foothills
SUBSECT_CO | KLKH

SUBSECTION | Killik Mountains
SUBSECT_CO | KLKM

SUBSECTION | Avingyak Hills
SUBSECT_CO | AVYH

SUBSECTION | Iggiruk Young Glaciated Uplands
SUBSECT_CO | IGGYG

SUBSECTION | Middle Noatak Young Glaciated Uplands
SUBSECT_CO | MNYG

SUBSECTION | Misheguk Young Glaciated Valleys
SUBSECT_CO | MSYG

SUBSECTION | DeLong Young Glaciated Valleys
SUBSECT_CO | DLGV

LITHOLOGY | Volcanic, mafic-older
SUBSECTION | Deadman Hills
SECTION_ | Koyukuk Uplands
GEN_GEOL | Volcanic, mafic-older
SUBSECT_CO | DDMH
Eco_Landsc | Boreal Rocky Upland

LITHOLOGY | Volcanic, mafic-older
SUBSECTION | Deadman Hills
SECTION_ | Koyukuk Uplands
GEN_GEOL | Volcanic, mafic-older
SUBSECT_CO | DDMH

SUBSECTION | Colville Lowland
SECTION_ | Lower Central Brooks Foothills
SUBSECT_CO | CVLL

SUBSECTION | Colville Lowland

LITHOLOGY | Intrusive, felsic
SUBSECTION | Eastern Bear Mountains
GEN_GEOL | Intrusive, felsic
SUBSECT_CO | EBRM

SUBSECTION | Colville Lowland
SECTION_ | Central Beaufort Coastal Plain
SUBSECT_CO | CVLF

SUBSECT_CO | CVLL

SUBSECTION | Itkillik Middle Lowland
SUBSECT_CO | ITKML

SUBSECTION | Teshekpuk Lower Coastal Plain
SUBSECT_CO | TKCP

LITHOLOGY | Peat, silt
SUBSECTION | Ipewik Lowland
GEN_GEOL | Colluvium, basin
SUBSECT_CO | IPWL

SUBSECTION | Colville MIddle Lowland
SUBSECT_CO | CVML

SUBSECTION | Nigu Lowland
SUBSECT_CO | NIGL

SUBSECT_CO | UTKM

SUBSECTION | Kaluktavik Mountains
SUBSECT_CO | KLVM

SUBSECTION | Noatak Lowland Floodplains
SECTION_ | Noatak Lowland
SUBSECT_CO | NTLWF

SUBSECTION | Lower Noatak Old Glaciated Uplands
SECTION_ | Noatak Lowland
SUBSECT_CO | LNOG

SUBSECTION | Squirrel Mountain Floodplains
SUBSECT_CO | SQMF

SUBSECTION | Koyukuk Young Glaciated Valleys
SUBSECT_CO | KYYV

SUBSECTION | Koyukuk Young Glaciated Uplands
SUBSECT_CO | KYYG

SUBSECTION | Sagavanirktok Silty Uplands
SUBSECT_CO | SGSU

LITHOLOGY | Metamorphic, noncarbonate
SUBSECTION | Alatna-Koyukuk Mountains
GEN_GEOL | Metamorphic, noncarbonate
SUBSECT_CO | ALKM

SUBSECTION | Igichuk Mountains
SUBSECT_CO | IGIM

SUBSECTION | Avingoriak Hills
SECTION_ | Kiana Hills
SUBSECT_CO | AVGH

SUBSECTION | Nuka Lowland
SUBSECT_CO | NUKL

SUBSECTION | Colville Middle Lowland
SUBSECT_CO | CVML

SUBSECTION | Kokolik Upper Floodplain
SECTION_ | Lower Western Brooks Foothills
SUBSECT_CO | KOKUF

SUBSECTION | Awuna Uplands
SUBSECT_CO | AWUU

SUBSECTION | Kokolik Upper Floodplain
SECTION_ | Lower Western Brooks Foothills
SUBSECT_CO | KKUF

North Ogilvie Mountains
ECOREGION | North Ogilvie Mountains
SUBSECTION | Porcupine Hills
SECTION_ | North Ogilve Mountains
SUBSECT_CO | POH

North Ogilvie Mountains
ECOREGION | North Ogilvie Mountains
SUBSECTION | Salmon Mountains
SECTION_ | North Ogilve Mountains
SUBSECT_CO | SLM
Eco_Landsc | Boreal Rocky Alkaline Alpine

SUBSECTION | Porcupine Lower Floodplain
SECTION_ | Porcupine Lowland
SUBSECT_CO | POLF

SUBSECTION | Black Floodplain
SECTION_ | Rampart Lowland
SUBSECT_CO | BLKF

SUBSECTION | Tukpahlearik Mountains
SUBSECT_CO | TKPM

SUBSECTION | Meade Upper Floodplain
SUBSECT_CO | MDUF

SUBSECTION | Ublutuoch Upper Coastal Plain
SUBSECT_CO | UBUCP

SUBSECTION | Kuparuk Coastal Plain
SUBSECT_CO | KPRCP

SUBSECTION | Miluveach Upper Coastal Plain
SUBSECT_CO | MVUCP

SUBSECTION | Kachemach Floodplain
SUBSECT_CO | KCHF

SUBSECTION | Avalik Upper Floodplain
SUBSECT_CO | AVUF

LITHOLOGY | Coastal Water
SUBSECTION | Barter Lagoon
SECTION_ | Leffingwell Coast
GEN_GEOL | Coastal water
SUBSECT_CO | BTIL
Soil_Lands | Coastal Water
Eco_Landsc | Arctic Coastal Water

SUBSECTION | Colville Lower Coastal Plain
SUBSECT_CO | CVLCP

SUBSECTION | Chandler Old Glaciated Uplands
SUBSECT_CO | CDOG

SUBSECTION | Chandler Young Glaciated Uplands
SUBSECT_CO | CDYG

LITHOLOGY | Sand
SUBSECTION | Ikpikpuk Middle Coastal Plain
GEN_GEOL | Eolian sand
SUBSECT_CO | IPMCP
Soil_Lands | Sandy Lowland
Eco_Landsc | Arctic Sandy Lowland

SUBSECTION | Noatak Upper Floodplain
SUBSECT_CO | NTUF

SUBSECTION | Prince Floodplain
SUBSECT_CO | PRF

SUBSECTION | Chandler Middle Floodplain
SUBSECT_CO | CDIF

SUBSECTION | Anaktuvuk Lower Floodplain
SUBSECT_CO | ANKLF

LITHOLOGY | Intrusive, mafic
SUBSECTION | Jade Mountains
GEN_GEOL | Intrusive, mafic
SUBSECT_CO | JADM
Soil_Lands | Rocky Circumneutral Alpine
Eco_Landsc | Boreal Rocky Circumneutral Alpine

SUBSECTION | Chandalar Middle Floodplain
SUBSECT_CO | CHIF

SUBSECT_CO | CHIF

SUBSECTION | Kikmiksok Mountains
SUBSECT_CO | KMKM

SUBSECTION | Eli Mountains
SUBSECT_CO | ELIM

SUBSECTION | Eli Foothills
SUBSECT_CO | ELIF

SUBSECTION | Wind Mountains
SUBSECT_CO | WDM

SUBSECTION | Sheenjek Uplands
SUBSECT_CO | SJU

SUBSECTION | Romanzof Young Glaciated Mountains
SECTION_ | Sadlerochit Mountains
SUBSECT_CO | RMYG

SECTION_ | Sadlerochit Mountains

SUBSECTION | Canning Mountain Floodplains
SUBSECT_CO | CNMF

SUBSECTION | Canning Young Glaciated Valleys
SUBSECT_CO | CNGV

SUBSECTION | Killik Young Glaciated Uplands
SUBSECT_CO | KLKYG

SUBSECTION | Kasegaluk Lower Coastal Plain
SUBSECT_CO | KSLCP

SUBSECTION | Kavachurak Foothills
SECTION_ | Noatak Mountains
SUBSECT_CO | KAVCF

LITHOLOGY | Peat, silt
SUBSECTION | Lockwood Lowland
SECTION_ | Kobuk Uplands
GEN_GEOL | Colluvium, basin
SUBSECT_CO | LKL

SUBSECTION | Kiana Hills
SECTION_ | Kiana Hills
SUBSECT_CO | KIAH

SUBSECTION | Chandalar Young Glaciated Uplands
SUBSECT_CO | CHYG

SUBSECTION | Alatna Hills
SUBSECT_CO | ALH

SUBSECTION | Koyukuk Old Glaciated Uplands
SUBSECT_CO | KYOG

SUBSECTION | Kobuk Mountains
SUBSECT_CO | KBM

SUBSECTION | Skajit Mountains
SUBSECT_CO | SKJM

SUBSECTION | Alatna-Koyukuk Mountains
SUBSECT_CO | ALKM

SUBSECTION | Nigu Mountains
SUBSECT_CO | NGM

SUBSECTION | Aickilik Mountains
SUBSECT_CO | ACM

SUBSECTION | Egaksrak Mountains
SUBSECT_CO | EGKM

SUBSECTION | Ekaluakat Mountains
SUBSECT_CO | EKM

LITHOLOGY | Instrusive, mafic
SUBSECTION | Reiser Mountains
SUBSECT_CO | REM
Eco_Landsc | Arctic Rocky Circumneutral Alpine

SUBSECTION | Akiak Mountains
SUBSECT_CO | AKM

SUBSECTION | Kobuk Old Glaciated Valleys
SUBSECT_CO | KBGV

SUBSECTION | Akiak Old Glaciated Valleys
SUBSECT_CO | AKOG

SUBSECTION | Salmon-Kitlik Floodplain
SUBSECT_CO | SLF

SUBSECTION | Christian Uplands
SUBSECT_CO | CHRU

SUBSECTION | Coleen Old Glaciated Uplands
SUBSECT_CO | COOG

SUBSECTION | Split Hills
SUBSECT_CO | SPH

SUBSECTION | Thomas Upland Floodplain
SECTION_ | Old Crow Mountains
SUBSECT_CO | THUF

SUBSECTION | Porcupine Uplands
SUBSECT_CO | POH

SUBSECTION | Coleen Lowland
SUBSECT_CO | COL

LITHOLOGY | Instrusive, ultramafic
SUBSECTION | Asik Mountain
GEN_GEOL | Intrusive, ultramafic
SUBSECT_CO | ASKM
Soil_Lands | Rocky Ultramafic Alpine
Eco_Landsc | Arctic Rocky Ultramafic Alpine

SUBSECTION | Angayukaqsraq Mountains
GEN_GEOL | Metamorphic, mixed
SUBSECT_CO | ANYM

SUBSECTION | Squirrel Mountains Floodplains
SECTION_ | Baird Southern Mountains
SUBSECT_CO | SQMF

SUBSECTION | Noatak Basin Floodplains
SUBSECT_CO | NTBF

SUBSECTION | Echooka Mountains
SUBSECT_CO | ECHM

SUBSECTION | Sheenjek High Mountains
SUBSECT_CO | SJHM

SUBSECTION | Nahtuk Southern Mountains
SUBSECT_CO | NHSM

SUBSECTION | Noatak Young Glaciated Valleys
SUBSECT_CO | NTYG

SUBSECTION | Upper Noatak Old Glaciated Uplands
SUBSECT_CO | UNOG

SUBSECTION | Lower Noatak Lowland
SUBSECT_CO | LNL

SUBSECTION | Kikiakrorak Uplands
SUBSECT_CO | KKKU

SUBSECTION | Ikpikpuk Upper Coastal Plain
SUBSECT_CO | IPUCP

SUBSECTION | Avalik Uplands
SUBSECT_CO | AVLU

SUBSECTION | Kogosukruk Lower Floodplain
SUBSECT_CO | KOLF

SUBSECTION | Kasegaluk Lower Floodplains
SUBSECT_CO | KSLF

SUBSECTION | Kikiakrorak Floodplain
SUBSECT_CO | KKKF

SUBSECTION | Avalik Lower Floodplain
SUBSECT_CO | AVLF

LITHOLOGY | Peat, Pebbly Silt
SUBSECTION | Simpson-Halkett Coastal Plain
SECTION_ | Ikpikpuk Coast
GEN_GEOL | Glaciomarine
SUBSECT_CO | SMKC

SUBSECTION | Kealok Floodplain
SUBSECT_CO | KEAF

SUBSECTION | Utukok Lower Floodplain
SUBSECT_CO | UTLF

SUBSECTION | Avalik Middle Coastal Plain
SUBSECT_CO | AVMCP

SUBSECTION | Utukok Upper Coastal Plain
SUBSECT_CO | UTUCP

SUBSECTION | Ivisaruk Floodplain
SUBSECT_CO | IVSF

SUBSECTION | Reiser Mountains
SUBSECT_CO | REM

SUBSECTION | Malcolm Mountains
SUBSECT_CO | MLM

SUBSECTION | Conybeare Mountains
SUBSECT_CO | CYBM

SUBSECTION | British Mountains
SUBSECT_CO | BRM

SUBSECTION | Camden Uplands
SUBSECT_CO | CBU

SUBSECTION | Marsh Creek Hills
SUBSECT_CO | MCH

SUBSECTION | Tamayariak Uplands
SUBSECT_CO | TYU

SUBSECTION | Chandalar Young Glaciated Valleys
SUBSECT_CO | CHYG
Eco_Landsc | Boreal Freshwater

SUBSECTION | Katakturuk Uplands
SUBSECT_CO | KTKU

SUBSECTION | Okpilak-Jago Lowland
SUBSECT_CO | OJL

SUBSECTION | Sagavanirktok Acidic Uplands
SUBSECT_CO | SGAU

SUBSECTION | Sagavanirktok Old Glaciated Uplands
SUBSECT_CO | SGOG

SUBSECTION | Noatak Lower Floodplain
SUBSECT_CO | NTLF

SUBSECTION | Ipnavik Floodplain
SUBSECT_CO | IVNF

SUBSECTION | Lower Noatak Young Glaciated Uplands
SUBSECT_CO | LNYG

SUBSECTION | Teshekpuk Floodplain
SUBSECT_CO | TKF

SUBSECTION | Fish Creek Lower Coastal Plain
SUBSECT_CO | FCCP

SUBSECTION | Fish-Judy Creek Floodplain
SUBSECT_CO | FCF

SUBSECTION | Colville Lower Floodplain
SUBSECT_CO | CVLF

SUBSECTION | Sagavanirktok Mountains
SUBSECT_CO | SGM

SUBSECTION | Sagavanirktok Mountain Floodplains
SUBSECT_CO | SGMG

SUBSECTION | Sagavanirktok Young Glaciated Valleys

SUBSECTION | Joe Creek Mountains
SUBSECT_CO | JCM

SUBSECTION | Coleen Lower Floodplain
SUBSECT_CO | COLF

SUBSECTION | Coleen Middle Floodplain
SUBSECT_CO | COMF

SUBSECTION | Sheenjek Upper Floodplain
SUBSECT_CO | SJUF

SUBSECTION | Sheenjek Middle Floodplain
SUBSECT_CO | SJIF

SUBSECTION | Chandalar Young Glaciated Valleys

SUBSECTION | Chandalar Mountain Floodplains
SUBSECT_CO | CHMF

SUBSECTION | Sourthern Wind Mountains
SUBSECT_CO | SWM

SUBSECTION | Christian Upland Floodplain
SUBSECT_CO | CHRF

SUBSECTION | Jago Old Glaciated Uplands
SUBSECT_CO | JAOG

SUBSECTION | Malcolm Mountain Floodplain
SUBSECT_CO | MLMF

SUBSECTION | Canning Old Glaciated Uplands
SUBSECT_CO | CNOG

SUBSECTION | Kadlerochilik Lower Floodplain
SUBSECT_CO | KDLF

SUBSECTION | Kadleroshilik Upper Floodplain
SUBSECT_CO | KDUV

SUBSECTION | Shaviovik MIddle Floodplain
SUBSECT_CO | SVMF

SUBSECTION | Camden Bay Coast
SUBSECT_CO | CBC

SUBSECTION | Shaviovik Coastal Plain
SUBSECT_CO | SVCP

SUBSECTION | Kuparuk Uplands

SUBSECTION | Niguanak Floodplain
SUBSECT_CO | NNKF

SUBSECTION | Canning Lowland Floodplain
SUBSECT_CO | CNLF

SUBSECTION | Canning Delta
SUBSECT_CO | CND

SUBSECTION | Shaviovik Lower Floodplain
SUBSECT_CO | SVLV

SUBSECTION | Kadleroshilik Lower Floodplain
SUBSECT_CO | KDLF

SUBSECTION | Mikkelsen Bay Coast
SECTION_ | Stefansson Coast
SUBSECT_CO | MKBC

SUBSECTION | Kobuk Very Old Glaciated Uplands
SUBSECT_CO | KBVOG

SUBSECTION | Lockwood Hills
SUBSECT_CO | LKH

SUBSECTION | Jago Delta
SUBSECT_CO | JAD

SUBSECTION | Kongakut Mountains
SUBSECT_CO | KNGM

SUBSECTION | Demarcation Mountains
SUBSECT_CO | DMM

SUBSECTION | Kongakut Uplands
SUBSECT_CO | KNGU

SUBSECTION | Firth Glaciated Valleys
SECTION_ | Southern British Mountains
SUBSECT_CO | FGV

SUBSECTION | Waring Hills
SUBSECT_CO | WRH

SUBSECTION | Kobuk Sand Sheets
SUBSECT_CO | KBSS
Soil_Lands | Sandy Upland
Eco_Landsc | Boreal Sandy Upland

SUBSECTION | Kobuk Stabilized Dunes
SUBSECT_CO | KBSD
Soil_Lands | Sandy Upland
Eco_Landsc | Boreal Sandy Upland

SUBSECTION | Kobuk Little Sand Dunes
SUBSECT_CO | KLSD
Soil_Lands | Sandy Upland
Eco_Landsc | Boreal Sandy Upland

SUBSECTION | Kobuk Stabilized Dunes
SUBSECT_CO | KBSD

SUBSECTION | Kobuk Dune Floodplains
SUBSECT_CO | KBDF
Eco_Landsc | Boreal Sandy Riverine

SUBSECTION | Ahnewetut Wetlands
SUBSECT_CO | ANHW

SUBSECTION | Aichilik-Kongakut Deltas
SUBSECT_CO | AKD

SUBSECTION | Beaufort Lagoon
SUBSECT_CO | BEL

SUBSECTION | Nigeruk Plain
SUBSECT_CO | NGRP
Eco_Landsc | Boreal Silty Lowland

SUBSECTION | Kobuk River Lowland
SUBSECT_CO | KBRL

SUBSECTION | Kobuk Floodplain
SUBSECT_CO | KBF
Eco_Landsc | Boreal Sandy Riverine

SUBSECTION | Niaktuvik Floodplain
SUBSECT_CO | NKTF

SUBSECTION | Inerevuk Mountains
SUBSECT_CO | INVM

SUBSECTION | Kobuk Sand Sheets
SUBSECT_CO | KBSS

SUBSECTION | Kobuk Great Sand Dunes
SUBSECT_CO | KBGD

SUBSECTION | Hunt-Akillik Floodplain
SUBSECT_CO | HAFL

SUBSECTION | Kobuk Dune Floodplains
SUBSECT_CO | KBDF

SUBSECTION | Salmon Hills
SUBSECT_CO | SLH

SUBSECTION | Martin Mountains
SUBSECT_CO | MRTM

SUBSECTION | Nigeruk Floodplains
SUBSECT_CO | NGRF

SUBSECTION | Ahnewetut Floodplain
SUBSECT_CO | AHNF

SUBSECTION | Kobuk Old Glaciated Uplands
SUBSECT_CO | KBOG

SUBSECTION | Kongakut Mountains
SUBSECT_CO | RIM

SUBSECTION | Imelyak Young Glaciated Uplands
SUBSECT_CO | IMYG

SUBSECTION | Coleen Old Glaciated Valleys
SUBSECT_CO | COGV

SUBSECTION | Sheenjek Middle Lowland
SUBSECT_CO | SJIL

SUBSECTION | White Snow Uplands
SUBSECT_CO | WSU

SUBSECTION | Kaliguricheark Floodplain
SUBSECT_CO | KLGF

SUBSECTION | Akiak Foothills
SUBSECT_CO | AKF

Kotzebue Sound Lowland
ECOREGION | Kotzebue Sound Lowland
SUBSECTION | Kiana Old Glaciated Uplands
SECTION_ | Kotzebue Coastal Plain
SUBSECT_CO | KIOG

SUBSECTION | Tuktuksuk Floodplain
SUBSECT_CO | TKTF

Southern Chukchi Coast
ECOREGION | Southern Chukchi Coast
SUBSECTION | Noatak Delta
SECTION_ | Kotzebue Coast
SUBSECT_CO | NTBD

SUBSECTION | Kitlik Old Glaciated Uplands
SUBSECT_CO | KITOG

SUBSECTION | Igisukruk Floodplain
SUBSECT_CO | IGSF

SUBSECTION | Shiliak Mountains
SUBSECT_CO | SLKM

SUBSECTION | Natmotirak Mountains
SUBSECT_CO | NATMM

SUBSECTION | Igisukruk Lowland
SUBSECT_CO | IGSL

SUBSECTION | Kaluich Mountains
SUBSECT_CO | KCHM

Kotzebue Sound Lowland
ECOREGION | Kotzebue Sound Lowland
SUBSECTION | Aukulak Coastal Plain
SECTION_ | Kotzebue Coastal Plain
SUBSECT_CO | AUCP

SUBSECTION | Shiliak Hills
SUBSECT_CO | SLKH

SUBSECTION | Porcupine Hills
SUBSECT_CO | POH

SUBSECTION | Tuktuksuk Upper Floodplain
SUBSECT_CO | TKUF

SUBSECTION | Squirrel Foothills
SUBSECT_CO | SQF

SUBSECTION | Kobuk Young Glaciated Valleys
SUBSECT_CO | KBYV

SUBSECTION | Kobuk Young Glaciated Uplands
SUBSECT_CO | KBYG

SUBSECTION | Tuktuksuk Mountains
SUBSECT_CO | TKTM

SUBSECTION | Lower Noatak Old Glaciated Uplands
SUBSECT_CO | LNOG

SUBSECTION | Squirrel Mountain Floodplains
SECTION_ | Baird Southern Mountains
SUBSECT_CO | SQMF

SUBSECTION | Northern Baird Floodplains
SUBSECT_CO | NOBF

SUBSECTION | Kakagrak Hills
SUBSECT_CO | KLGH

SUBSECTION | Igichuk Hills
SUBSECT_CO | IGIH

SUBSECTION | Jade Upland
SUBSECT_CO | JADU

SUBSECTION | Kotlik Coastal Plain
SUBSECT_CO | KTKCP

SUBSECTION | Wulik Middle Floodplains
SUBSECT_CO | WLIF

SUBSECTION | Kunyanak Mountains

SUBSECTION | Old Crow Hills
SECTION_ | Old Crow Mountains
SUBSECT_CO | OCH

SUBSECTION | Thomas Mountains
SECTION_ | Old Crow Mountains
SUBSECT_CO | THM

SUBSECTION | Riggs Mountains
SUBSECT_CO | RIM

SUBSECTION | Firth Glaciated Valleys
SUBSECT_CO | FGV

SUBSECTION | Koness Mountains
SUBSECT_CO | KONM

SUBSECTION | Grayling Mountains
SUBSECT_CO | GRM

LITHOLOGY | Intrusive, felsic
SUBSECTION | Old Crow Mountains
GEN_GEOL | Intrusive, felsic
SUBSECT_CO | OCM

SUBSECTION | Rampart Hills
SUBSECT_CO | RAH

SUBSECTION | Porcupine Lower Floodplain
SUBSECT_CO | POLF

SUBSECTION | Porcupine Uplands

SUBSECTION | Thazzik Mountains
SUBSECT_CO | TZM

SUBSECTION | Sheenjek Mountains
SUBSECT_CO | SJM

SUBSECTION | Anaktuvuk Young Glaciated Valley
SUBSECT_CO | ANKG

SUBSECTION | Agashashok Mountains
SUBSECT_CO | AGAM

SUBSECTION | Wulik Coastal Plain
SUBSECT_CO | WLCP

SUBSECTION | Endicott Mountain Floodplains
SUBSECT_CO | ENMF

SUBSECTION | Outwash Floodplain
SUBSECT_CO | OTWF

SUBSECTION | Noatak Lowland Floodplains
SUBSECT_CO | NTLWF

SUBSECTION | Kivilina-Kotlik Lagoons
SECTION_ | Krusenstern Coast
SUBSECT_CO | KVKTL

SUBSECTION | Tahinichok Mountains
SUBSECT_CO | THNM

SUBSECTION | Mulgrave Hills
SUBSECT_CO | MLGH

SUBSECTION | Killik Young Glaciated Valleys
SUBSECT_CO | KLGV

SUBSECTION | Upper Noatak Basin
GEN_GEOL | Glaciolacustrine
SUBSECT_CO | UNB

SUBSECTION | Kurupa Old Glaciated Valleys
SUBSECT_CO | KRPOG

LITHOLOGY | Volcanic, mafic-older
SUBSECTION | Maiyumerak Mountains
GEN_GEOL | Volcanic, mafic-older
SUBSECT_CO | MYMM

SUBSECTION | Tututalak Mountains
SUBSECT_CO | TTTM

SUBSECTION | Wulik Lower Floodplains
SUBSECT_CO | WLLF

SUBSECTION | Mulgrave Uplands
SUBSECT_CO | MLGU

SUBSECTION | Noatak Middle Floodplain
SUBSECT_CO | NTMF

SUBSECTION | Wulik Old Glaciated Uplands
SUBSECT_CO | WLOG

SUBSECTION | Chandler Foothills
SUBSECT_CO | CDF

SUBSECTION | Imikneyak Mountains
SUBSECT_CO | IMKM

LITHOLOGY | Instrusive, ultramafic
SUBSECTION | Misheguk Mountains
GEN_GEOL | Intrusive, ultramafic
SUBSECT_CO | MSHM
Soil_Lands | Rocky Ultramafic Alpine
Eco_Landsc | Arctic Rocky Ultramafic Alpine

SUBSECTION | Delong Mountain Floodplains
SUBSECT_CO | DLMF

LITHOLOGY | Instrusive, ultramafic
SUBSECTION | Siniktanneyak Mountain
GEN_GEOL | Intrusive, ultramafic
SUBSECT_CO | SNKM
Soil_Lands | Rocky Ultramafic Alpine
Eco_Landsc | Arctic Rocky Ultramafic Alpine

SUBSECTION | Sivukat Mountains
SUBSECT_CO | SIVM

SUBSECTION | Nigu Floodplain
SUBSECT_CO | NGF

SUBSECTION | Kugururok Mountains
SUBSECT_CO | KGRM

SUBSECTION | Killik Mountain Floodplain
SUBSECT_CO | KLKMF

SUBSECTION | Kelly Mountains
SUBSECT_CO | KELM

SUBSECTION | Kukpuk Upper Floodplain
SUBSECT_CO | KKPUF

SUBSECTION | Cape Seppings Coast
SECTION_ | Krusenstern Coast
SUBSECT_CO | CPSC

SUBSECTION | Colville Upper Floodplains
SUBSECT_CO | CVUF

SUBSECTION | Lisburne Headwater Floodplains
SECTION_ | Lisburne Mountains
SUBSECT_CO | LBHF

SUBSECTION | Cape Thompson Coast
SUBSECT_CO | CPTC

SUBSECTION | Toolik Middle Floodplain
SUBSECT_CO | TOMF

SUBSECTION | Point Hope Coast
SUBSECT_CO | PHC

SUBSECTION | Ikpikpuk Upper Floodplain
SUBSECT_CO | IPUF

SUBSECTION | Kuparuk Middle Floodplain
SUBSECT_CO | KPFMF

SUBSECTION | Kukpowruk Floodplains
SUBSECT_CO | KPWF

SUBSECTION | Miluveach Lower Coastal Plain
SUBSECT_CO | MVLCP

SUBSECTION | Miluveach Floodplain
SUBSECT_CO | MVF

SUBSECTION | Prudhoe Bay Coast
SECTION_ | Stefansson Coast
SUBSECT_CO | PBC

SUBSECTION | Kuparuk Delta
SECTION_ | Stefansson Coast
SUBSECT_CO | KPRD

SUBSECTION | Colville Inner Delta
SECTION_ | Colville Coast
SUBSECT_CO | CVID

SUBSECTION | Kalikpik Floodplain
SUBSECT_CO | KALF

SUBSECTION | Harrison Bay Coast
SECTION_ | Colville Coast
SUBSECT_CO | HBC

SUBSECTION | Simpson Lagoon Coast
SUBSECT_CO | SMLC

SUBSECTION | Ugnuravik Coastal Plain
SUBSECT_CO | UGCP

SUBSECTION | Colville Outer Delta
SECTION_ | Colville Coast
SUBSECT_CO | CVOD

SUBSECTION | Wainwright Lower Coastal Plain
SUBSECT_CO | WWLCP

SUBSECTION | Meade Middle Coastal Plain
SUBSECT_CO | MDMCP

SUBSECTION | Teshekpuk Lower Coastal Plain
SUBSECT_CO | TKCP
Eco_Landsc | Arctic Freshwater

LITHOLOGY | Peat, Pebbly Silt
SUBSECTION | Cape Halkett Lower Coastal Plain
GEN_GEOL | Glaciomarine
SUBSECT_CO | CAHCP

Northern Chukchi Coast
ECOREGION | Northern Chukchi Coast
SUBSECTION | Ksegaluk Lagoon
SECTION_ | Wainwright Coast
SUBSECT_CO | KSGL

SUBSECTION | Meade Lower Floodplain
SUBSECT_CO | MDLF

Northern Chukchi Coast
ECOREGION | Northern Chukchi Coast
SUBSECTION | Kuk Inlet
SECTION_ | Wainwright Coast
SUBSECT_CO | KUKW

SUBSECTION | Smith Bay
SUBSECT_CO | SMB

SUBSECTION | Inaru Floodplain
SUBSECT_CO | INAF

SUBSECTION | Ikpukpuk-Meade Deltas
SUBSECT_CO | IMD

Northern Chukchi Coast
ECOREGION | Northern Chukchi Coast
SUBSECTION | Peard Bay Coast
SECTION_ | Wainwright Coast
SUBSECT_CO | PBC

LITHOLOGY | Peat, Pebbly Silt
SUBSECTION | Simpson-Halkett Coastal Plain
GEN_GEOL | Glaciomarine
SUBSECT_CO | SMKC

SUBSECTION | Elson Lagoon Coast Plain
SUBSECT_CO | ELCP

SUBSECTION | Admiralty Bay
SUBSECT_CO | ADMB

SUBSECTION | Barrow Coast
SUBSECT_CO | BRWC

SUBSECTION | Elson Lagoon
SUBSECT_CO | ELL

SUBSECTION | Sagavanirktok Delta
SUBSECT_CO | SGD

SUBSECTION | Kuparuk Uplands
SUBSECT_CO | KPRU

SUBSECTION | Ivishak Mountains
SUBSECT_CO | IVIM

SUBSECTION | Koyukuk Crest Mountains
SUBSECT_CO | CHHM

SUBSECTION | Chandalar Upper Floodplains
SUBSECT_CO | CHUF

SUBSECTION | Koyukuk Crest Mountains
SUBSECT_CO | KYCM

SUBSECTION | Colville Middle Floodplain
SUBSECT_CO | CVMF

SUBSECTION | Anaktuvuk Middle Floodplain
SUBSECT_CO | ANKMF

SUBSECTION | Sagavanirktok Lower Floodplain
SUBSECT_CO | SGLF

SUBSECTION | Imikruk Coast
SUBSECT_CO | IMIC

SUBSECTION | Niguanak Hills
SUBSECT_CO | NNKH

SUBSECTION | Snowden Mountains
SUBSECT_CO | SNWM

SUBSECTION | Dietrich Mountains
SUBSECT_CO | DIEM

SUBSECTION | Chandalar Young Glaciated Uplands

SUBSECTION | Endicott Crest Mountains
SUBSECT_CO | ENCM

LITHOLOGY | Intrusive, mafic
SUBSECTION | Doonerak Mountains
SUBSECT_CO | DNK
Eco_Landsc | Boreal Rocky Circumneutral Alpine

SUBSECTION | Ulaneak Mountains
SUBSECT_CO | ULM

SUBSECTION | Kobuk Mountain Floodplains
SUBSECT_CO | KBMF

SUBSECTION | Killik Uplands
SUBSECT_CO | KLKU

SUBSECTION | Schrader Mountains
SUBSECT_CO | SCM

SUBSECTION | Franklin Young Glaciated Valleys
SUBSECT_CO | FRYG

SUBSECTION | Franklin Mountains
SUBSECT_CO | FRM

SUBSECTION | Squirrel Mountains Floodplains
SECTION_ | Baird Southern Mountains

SUBSECTION | Squirrel Old Glaciated Uplands
SUBSECT_CO | SQOG

SUBSECTION | Squirrel Lower Floodplain
SUBSECT_CO | SQLF

SUBSECTION | Squirrel Middle Floodplain
SUBSECT_CO | SQIF

SUBSECTION | Kivalina Uplands
SUBSECT_CO | KIVU

SUBSECTION | Barter Island
SUBSECT_CO | BTI

SUBSECTION | Komakuk Coast
SECTION_ | Icy Coast
SUBSECT_CO | KOMC

SUBSECTION | Komakuk Coast
SUBSECT_CO | KOMC

Chukchi Sea
ECOREGION | Chukchi Sea
SUBSECTION | Kotzebue Sound Coastal Water
SECTION_ | Kotzebue Sound Nearshore Water
SUBSECT_CO | KZCW

Chukchi Sea
ECOREGION | Chukchi Sea
SUBSECTION | Kotzebue Sound Nearshore Water
SECTION_ | Kotzebue Sound Nearshore Water
SUBSECT_CO | KZNW

SUBSECTION | Wulik Mountain Floodplains
SUBSECT_CO | WLMF

SUBSECTION | Sheenjek Upper Lowland
SUBSECT_CO | SJUL

SUBSECTION | Christian Mountain
SUBSECT_CO | CHRM

SUBSECTION | Cape Halkett Neashore Water
SUBSECT_CO | CAHNW

SUBSECTION | Simpson-Halkett Coastal Plain
SUBSECT_CO | SMKC

SUBSECTION | Harrison Bay Nearshore Water
SUBSECT_CO | HBNW

SUBSECTION | Kogru Bay
SUBSECT_CO | KOGB

SUBSECTION | Smith Bay Nearshore Water
SUBSECT_CO | SMNW

SUBSECTION | Barrow Nearshore Water
SUBSECT_CO | BRWNW

SUBSECTION | Wainwright Nearshore Water
SUBSECT_CO | WWNW

SUBSECTION | Krusenstern Nearshore Water
SUBSECT_CO | KRSNW

SUBSECTION | Lisburne Nearshore Water
SUBSECT_CO | LBNW

Chukchi Sea
ECOREGION | Chukchi Sea
SUBSECTION | Souther Chukchi Offshore Water (5-10 m)
SECTION_ | Southern Chukchi Offshore Water
SUBSECT_CO | SCOW

SUBSECTION | Souther Chukchi Offshore Water (10-20 m)
SECTION_ | Southern Chukchi Offshore Water
SUBSECT_CO | SCOW

SUBSECTION | Northern Chukchi Offshore Water (10-20 m)
SECTION_ | Northern Chukchi Offshore Water
SUBSECT_CO | NCOW

SUBSECTION | Northern Chukchi Offshore Water
SECTION_ | Northern Chukchi Offshore Water
SUBSECT_CO | NCOW

SUBSECTION | Hulahula-Jago Young Glaciated Uplands
SUBSECT_CO | HJYG

SUBSECTION | Jago Hills
SUBSECT_CO | JAH

SUBSECTION | Kavik Mountain Floodplains
SUBSECT_CO | KVKF

SUBSECTION | Shaviovik Upper Floodplain
SUBSECT_CO | SVUF

SUBSECTION | Bathtub Mountains
SUBSECT_CO | BTHM

SUBSECTION | Leffingwell Mountains
SUBSECT_CO | LEM

SUBSECTION | Stefansson Sound
SUBSECT_CO | STF

SUBSECTION | Kogosukruk Upper Floodplain
SUBSECT_CO | KSUP

SUBSECTION | Anaktuvuk Mountains

SUBSECTION | Double Mountains
SUBSECT_CO | DOM

SUBSECTION | Tetsyeh Mountains
SUBSECT_CO | TETM

SUBSECTION | Old Woman Mountains
SUBSECT_CO | OWM

SUBSECTION | Junjik Mountains
SUBSECT_CO | JUM

SUBSECTION | Canning Nearshore Water
SUBSECT_CO | CNW

SUBSECTION | Kanayut Mountains

SUBSECTION | Nahtuk Mountains
SUBSECT_CO | NHSM

SUBSECTION | Koyukuk Middle Floodplain
SUBSECT_CO | KYIF

SUBSECTION | Ipnavik Mountains
SUBSECT_CO | IVNM

SUBSECTION | Nukatpiat Mountains
SUBSECT_CO | NKTM

SUBSECTION | Kavachurak Crest Mountains
SUBSECT_CO | KAVCM

SUBSECTION | Kavachurak Foothills
SUBSECT_CO | KAVCF

SUBSECTION | Angayucham Hills
SUBSECT_CO | ANGH

LITHOLOGY | Intrusive, mafic
SUBSECTION | Narvak Mountains
SUBSECT_CO | NRVM
Eco_Landsc | Boreal Rocky Circumneutral Alpine

SUBSECTION | Ulaneak Old Glaciated Valleys
SUBSECT_CO | ULOG

SUBSECTION | Kobuk Old Glaciated Valleys

SUBSECTION | Ulaneak Mountain Floodplains
SUBSECT_CO | ULMF

SUBSECTION | Nahtuk Mountains
SUBSECT_CO | NHTM

SUBSECTION | Nahtuk Northern Mountains
SUBSECT_CO | NHNM

SUBSECTION | McLellan Mountains
SUBSECT_CO | MCLM

SUBSECT_CO | KYGV

SUBSECTION | Kugrak Crest Mountains
SECTION_ | Schwatka Mountains
SUBSECT_CO | KUGM

SUBSECT_CO | KBGV

SUBSECTION | Chandalar Old Glaciated Uplands
SUBSECT_CO | CHOG

SUBSECTION | Shungnak Mountains
SUBSECT_CO | SHM

SUBSECTION | Kobuk Middle Floodplains
SUBSECT_CO | KBIF

SUBSECTION | Kobuk Lower Floodplain
SUBSECT_CO | KBLF

SUBSECTION | Marsh Fork Uplands
SUBSECT_CO | MFU

SUBSECTION | Marsh Fork Mountains
SUBSECT_CO | MFM

SUBSECTION | Sagavanirktok Foothill Floodplain
SUBSECT_CO | SGFF

SUBSECTION | Sadlerochit High Mountain Floodplain
SUBSECT_CO | SAMF

SUBSECTION | Sadlerochit Mountains
SUBSECT_CO | SAM

SUBSECTION | Okpilak Mountains
SUBSECT_CO | OKM

SUBSECTION | Romanzof Mountains
SUBSECT_CO | RMM

SUBSECTION | Ekaluakat Old Glaciated Valleys
SUBSECT_CO | EKOG

SUBSECTION | Itkillik Upper Floodplain
SUBSECT_CO | ITKUF

SUBSECTION | Chandler Mountain Floodplain
SUBSECT_CO | CDMF

SUBSECTION | Aklumayuak Foothills
SUBSECT_CO | AYLF

SUBSECTION | Avingyak Mountains
SUBSECT_CO | AVYM

SUBSECTION | Deadman Hills
SUBSECT_CO | DDMH

SUBSECTION | Sozhekla Uplands
SUBSECT_CO | SZU

SUBSECTION | Narvak Mountains
SUBSECT_CO | NRVM

SUBSECTION | Alatna Young Glaciated Valleys
SUBSECT_CO | ALYG

SUBSECTION | Misty Mountains
SUBSECT_CO | MISM
Eco_Landsc | Boreal Rocky Acidic-Alkaline Alpine

SUBSECTION | Collen Upper Floodplain
SUBSECT_CO | COUF

SUBSECTION | Sheenjek Crest Mountains
SUBSECT_CO | SJCM

SUBSECTION | Itkillik Lower Floodplain
SUBSECT_CO | ITKLF

SUBSECTION | Kokolik Lower Floodplain
SUBSECT_CO | KKLF

SUBSECTION | Killik Floodplain
SUBSECT_CO | KLKF

SUBSECTION | Kokolik Upper Floodplain
SUBSECT_CO | KKUF

SUBSECTION | Kukpowruk Upper Floodplain
SUBSECT_CO | PKWUF

SUBSECTION | Cape Lisburne Coast
SUBSECT_CO | CPLC

SUBSECTION | Chandler Upper Floodplain
SUBSECT_CO | CDUF

SUBSECTION | Alatna Young Glaciated Valley

SUBSECTION | Koyukuk Upper Floodplain
SUBSECT_CO | KYUF

SUBSECTION | Koyukuk Lower Floodplain
SUBSECT_CO | KYLF

SUBSECTION | Hunt-Akillik Upper Floodplain
SUBSECT_CO | HNUF

SUBSECTION | Hunt-Akillik Lower Floodplain
SUBSECT_CO | HALF

SUBSECTION | Arrigetch Mountains
SECTION_ | Schwatka Mountains
SUBSECT_CO | ARM

SUBSECTION | Koyukuk High Mountain Floodplains
SUBSECT_CO | KYHMF

SUBSECTION | Romanzof Young Glaciated Mountains
SUBSECT_CO | RMYG

SUBSECTION | Canning Foothill Floodplain
SUBSECT_CO | CNFF

SUBSECTION | Itkillik Middle Floodplain
SUBSECT_CO | ITKMF

SUBSECTION | Western Bear Mountains
SUBSECT_CO | WBRM

SUBSECTION | Chandalar High Mountains
SUBSECT_CO | CHHM

SUBSECTION | Chandalar Low Mountains
SUBSECT_CO | CHLM

SUBSECTION | Ivishak Crest Mountains
SUBSECT_CO | JUM

SUBSECTION | Avan Mountains
SUBSECT_CO | AVNM

SUBSECTION | Alatna Young Glaciated Valleys

SUBSECTION | Squirrel Mountains Floodplains

SUBSECTION | Kasegaluk Middle Coastal Plain
SUBSECT_CO | KSMCP

SUBSECTION | Ksegaluk Lagoon
SUBSECT_CO | KSGL

SUBSECTION | Yukon Nearshore Water
SUBSECT_CO | YNW

SUBSECTION | Kukpowruk Mountains
SUBSECT_CO | KKPM

SUBSECTION | Bastille Mountains
SUBSECT_CO | BAM

SUBSECTION | Misheguk Mountains
SUBSECT_CO | MSHM

SUBSECTION | Anisak Mountains
SUBSECT_CO | ANSM

SUBSECTION | Ikalukrok Foothills
SUBSECT_CO | IKRLF

SUBSECTION | Wulik Mountains
SUBSECT_CO | WLM

SUBSECTION | Ikalukrok Mountains
SUBSECT_CO | IKRLM

SUBSECTION | Hope Coastal Plain
SUBSECT_CO | HOCP

SUBSECTION | Akalolik Mountains
SECTION_ | Lisburne Mountains
SUBSECT_CO | AKAM

SUBSECTION | Ivikrok Mountain
SUBSECT_CO | IVRM

SUBSECTION | Lisburne Mountains
SUBSECT_CO | LBM

SUBSECTION | Akalolik Mountains
SUBSECT_CO | AKAM

SUBSECTION | Asikpak Mountains
SUBSECT_CO | ASPM

SUBSECTION | Siaktak Mountains
SUBSECT_CO | SKTM

SUBSECTION | Klerty Mountains
SUBSECT_CO | KLRM

SUBSECTION | Selawik Old Glaciated Lowland
SUBSECT_CO | SKOG

SUBSECTION | Kiana Lowland
SUBSECT_CO | KIAL

SUBSECTION | Kiana Hills
SUBSECT_CO | KIAH

SUBSECT_CO | SQM

SUBSECTION | Imelyak Foothills
SUBSECT_CO | IMH

SUBSECTION | Kallarichuk Floodplain
SUBSECT_CO | KLCF

SUBSECTION | Kallarichuk Hills
SUBSECT_CO | KLCH

SUBSECTION | Sagavanirktok Coastal Plain
SUBSECT_CO | SGCP

SUBSECTION | Kuparuk Lower Floodplain
SUBSECT_CO | KPRLF

SUBSECTION | Barter Lagoon
SUBSECT_CO | BTIL

SUBSECTION | Anisak Young Glaciated Uplands
SUBSECT_CO | ANYG

SUBSECTION | Anisak Hills
SUBSECT_CO | ANH

SUBSECTION | Aniuk Hills
SUBSECT_CO | ANIH

SUBSECT_CO | OMUCP

SUBSECTION | Awuna Lowland
SUBSECT_CO | AWUL

SUBSECTION | Kulugra Uplands
SUBSECT_CO | KLGU

SUBSECTION | Chandalar Middle Floodplain

SUBSECTION | Utukok Lowland
SUBSECT_CO | UTL

SUBSECTION | Chandler Lowland
SUBSECT_CO | CDL

SUBSECTION | Nigu Foothills
SUBSECT_CO | NGH

SUBSECTION | Noatak Old Glaciated Valley
SUBSECT_CO | NTOG

SUBSECTION | Sagavanirktok Lowland
SUBSECT_CO | SGL

SUBSECTION | Toolik Uplands
SUBSECT_CO | TOU

SUBSECTION | White Hills
SUBSECT_CO | WHH

SUBSECTION | Firth Mountain Floodplain
SUBSECT_CO | FMF

SUBSECTION | Nigu Young Glaciated Valley
SUBSECT_CO | NGYG

SUBSECTION | Canning Upper Coastal Plain
SUBSECT_CO | CNLF

SUBSECTION | Lisburne Headwater Floodplains
SUBSECT_CO | LBHF

SUBSECTION | Ipewik Lowland
SUBSECT_CO | IPWL

SUBSECTION | Kukpowruk Mountain Floodplains
SUBSECT_CO | KPWMF

SUBSECTION | Toolik Upper Floodplain
SUBSECT_CO | TOUF

SUBSECTION | Schwatka Mountain Floodplains
SECTION_ | Schwatka Mountains
SUBSECT_CO | SWMF

SUBSECTION | Schwatka Mountain Floodplains
SUBSECT_CO | SWMF

SUBSECTION | Schwatka Young Glaciated Valleys
SUBSECT_CO | SWYG

SUBSECT_CO | UTM

SUBSECTION | Nuka Mountains
SUBSECT_CO | NUKM

SUBSECTION | Colville MIddle Lowland

Shape_Leng | 606.779

SUBSECTION | Waring Mountains
SUBSECT_CO | WRM

SUBSECTION | Cape Halkett Lower Coastal Plain
SUBSECT_CO | CAHCP

SUBSECTION | Chandalar Lower Floodplain
SUBSECT_CO | CHLF

SUBSECT_CO | ECIF

SUBSECTION | Riggs Mountains