153°

153°

156°

156°

159°

159°

162°

162°

165°

165°

69° 69°

68° 68°

67° 67°

66° 66°

DE LONG 

MOUNTAINS

MISHEGUK 

MOUNTAIN

HOWARD 

PASS

NOATAK

BAIRD 

MOUNTAINS AMBLER RIVER

KILLIK 

RIVER

SURVEY 

PASS

Kotzebue

Baldwin Peninsula

Cutler

E

R

li R

Kelly

R

Anisak R

Nimiuktuk R

Kugururok

R

Noatak National 

Preserve

LOCATION INDEX

Kotzebue

Sound

C H U K C H I S E A

N o a t a k

R i v e r

Ko b u k

R i v e r

R i v e

C

r

o l v i l l e

Any use of trade, product, or firm names in t

purposes only and does not imply endorsem

For sale by U.S. Geological Survey, Informa

Federal Center, CO 80225, 1–888–ASK–US

Digital files available at http://pubs.usgs.gov/

SCALE 1:250 000

CONTOUR INTERVAL 200 FEET

NATIONAL GEODETIC VERTICAL DATUM OF 1929

2008 MAGNETIC DECLINATION VARIES FROM APPROXIMATELY

15° 30' E. AT WEST MARGIN OF MAP TO 19° 00' E. AT EAST MARGIN

5 0 5 10 15 20 MILES

5 0 5 10 15 20 25 30 KILOMETERS

Surficial Geologic Map of the Noatak National Preserve, Alaska

By

Thomas D. Hamilton

2010

ALASKA

MAP LOCATION

MAGNETIC NORTH

17°

TRUE NORTH

APPROXIMATE MEAN

DECLINATION, 2009

Base from U.S. Geological Survey, 1:250,000 scale quadrangles: 

De Long Mountains, 1955; Misheguk Mountains, 1956; Howard 

Pass, 1956; Killik River, 1956; Noatak, 1955; Baird Mountains, 

1956; Amler River, 1956; Survey Pass, 1956. 

Base reprojected from Universal Transverse Mercator to Albers 

Equal Area with Central Meridian 159.5° W, Standard Parallels 

66° N and 70° N; Clark 1866 Ellipsoid, 1927 North American 

Datum. 

Geology mapped by T. Hamilton, 1979 - 2006

GIS database K.A. Labay, N. Shew, C.S. 

Peterson, and D.J. Grunwald

Edited by T. Iki; digital cartographic production 

by R. Koch and D.A. Ryan

Manuscript approved for publication July 3, 2008

U

D

Bs

af

f

fa

fi

fd

fd2

fd1

afi

al

al1

alsa

als

al2

tg

tg3

tg2

tg4

sa

us

m

si

tg1

c

s

av

cm

pr

b

dts

l

dt

tl

igl

igl2

igl1

igl1B

igl1A

sgl

rg

rga

tr

tra

rgi

tri

ls

gr

grfn

fl idt

sdt

cgl

ml

ml2

ml1

si/cgm

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nd

nd2

nd1

id

id3

ik3

id2

ik2

id1

io

io3

io2

io1

ik1

id1B

id1A

id1C

io1C

io1B

io1A

ii2

ii1

ii1B

ii1A

so

so2

so1

co

ik1A

i-c

Ba

Be

B

Bg

Bs

sd

sk

sd2

sd1

cd

od

ad

LIST OF MAP UNITS

SURFICIAL DEPOSITS

[Map units shown in parentheses, such as (id), indicate thin and generally discontinuous deposits over near-surface bedrock. Map units shown with slashes, such as 

us/d, indicate deposits of the first unit above known or inferred subsurface deposits 

of the second unit (color represents upper unit). Units of either type are described 

below only where additional explanation is necessary. Units queried where 

uncertain]

FAN DEPOSITS

Steep alpine fan deposits (Holocene to late Pleistocene)

Inactive alpine fan deposits (late Pleistocene)

Fan deposits (Holocene to late Pleistocene)

Active fan deposits (Holocene)

Inactive fan deposits (Holocene to late Pleistocene)

Fan-delta deposits (late Pleistocene)

Fan-delta deposits, younger component (late Pleistocene)

Fan-delta deposits, older component (late Pleistocene)

ALLUVIUM

Alluvium, undivided (Holocene)

Modern alluvium (Holocene)

Low alluvial-terrace deposits (Holocene)

Alluvium, sand facies (Holocene to late Pleistocene)

Alluvium, silt facies (Holocene)

Gravel deposits, undifferentiated (late Pleistocene)

Gravel deposits, fine-grained (Holocene to late Pleistocene)

TERRACE DEPOSITS

Terrace gravel, undivided (late to middle Pleistocene)

Terrace gravel, lowest-level (Holocene)

Terrace gravel, low-level (Holocene)

Terrace gravel, intermediate-level (late Pleistocene)

Terrace gravel, highest-level (late Pleistocene)

COLLUVIAL DEPOSITS

Colluvium, undivided (Holocene to middle Pleistocene)

Colluvium-filled mountain valley (Holocene to middle Pleistocene)

Solifluction deposits (Holocene to late Pleistocene)

Avalanche tracks and deposits (Holocene)

Protalus rampart deposits (Holocene)

Rock-glacier deposits, undifferentiated (Holocene to late 

Pleistocene)

Rock-glacier deposits, active (Holocene)

Rock-glacier deposits, inactive (Holocene to late Pleistocene)

Talus rubble, undifferentiated (Holocene to late Pleistocene)

Talus rubble, active (Holocene)—MAP SYMBOL ONLY

Talus rubble, inactive (Holocene to late Pleistocene)

Landslide deposits (Holocene to late Pleistocene)

Flow deposits (Holocene to late Pleistocene)

SAND, SILT, AND ORGANIC DEPOSITS

Sand deposits (late Pleistocene)

Ice-rich silt deposits (Holocene to late Pleistocene)

Upland silt deposits (Holocene to early Pleistocene)

Muskeg (Holocene to middle Pleistocene)

LACUSTRINE, GLACIOLACUSTRINE, AND GLACIAL-MARINE DEPOSITS

General

Beach deposits (Holocene)

Deltaic deposits (Holocene to late Pleistocene)

Silty deltaic deposits (Holocene)

Lacustrine deposits (Holocene to late Pleistocene)

Thaw-lake deposits (Holocene)

Within Brooks Range

Glacial-lake deposits of Itkillik age (late Pleistocene)

Glacial-lake deposits of Avan (Itkillik Phase II) age (late 

Pleistocene)

Glacial-lake deposits of Itkillik Phase I age (late Pleistocene)

Glacial-lake deposits of Anisak (Itkillik Phase IB) age (late 

Pleistocene)

Glacial-lake deposits of Makpik (Itkillik Phase IA) age (late 

Pleistocene)

Glacial-lake deposits of Sagavanirktok River age (middle Pleistocene)

Deltaic deposits of Itkillik age (late Pleistocene)

Deltaic deposits of Sagavanirktok River age (middle Pleistocene)

Glacial-lake deposits of Cutler age (middle Pleistocene)

Mission Lowland

Lacustrine and other fine-grained deposits (Holocene to late 

Pleistocene)

Younger lacustrine and other fine-grained deposits (Holocene to 

late Pleistocene)

Older lacustrine and other fine-grained deposits (late Pleistocene)

Glacial-marine deposits of Cutler(?) age (middle Pleistocene)

GLACIAL DRIFT AND ICE-CONTACT GRAVEL

Drift, undifferentiated (late to early Pleistocene)

Late Holocene glaciation (Neoglaciation)

Drift of neoglacial age (Holocene)

Drift of late neoglacial age (Holocene)

Drift of early neoglacial age (Holocene)

Itkillik glaciation

Drift of Itkillik age, undifferentiated (late Pleistocene)

Drift of late Avan (late Itkillik Phase II) readvance (late 

Pleistocene)

Kame and kame-terrace deposits (late Pleistocene)

Drift of Avan (Itkillik Phase II) age (late Pleistocene)

Kame and kame-terrace deposits (late Pleistocene)

Drift of Itkillik Phase I age, undivided (late Pleistocene)

Kame and kame-terrace deposits (late Pleistocene)

Drift of late Anisak (Itkillik Phase IC) age (late Pleistocene)

Drift of Anisak (Itkillik Phase IB) age (late Pleistocene)

Drift of Makpik (Itkillik Phase IA) age (late Pleistocene)

Kame and kame-terrace deposits (late Pleistocene)

Ice-contact meltwater deposits (late Pleistocene)

Sagavanirktok River glaciation

Drift of Sagavanirktok River age (middle Pleistocene)

Kame and kame-terrace deposits (middle Pleistocene)

Drift of late Sagavanirktok River age (middle Pleistocene)

Drift of early Sagavanirktok River age (middle Pleistocene)

Cutler glaciation

Drift of Cutler age (middle to early Pleistocene)

Sagavanirktok River or older glaciation

Older drift (middle to early Pleistocene)

Anaktuvuk River glaciation

Drift of Anaktuvuk River age (early Pleistocene)

GLACIAL OUTWASH AND INWASH

Itkillik glaciation

Outwash of Itkillik age, undivided (late Pleistocene)

Outwash of late Avan (late Itkillik Phase II) readvance (late 

Pleistocene)

Outwash of Avan (Itkillik Phase II) age (late Pleistocene)

Outwash of Itkillik Phase I age (late Pleistocene)

Outwash of late Anisak (late Itkillik Phase IC) age (late 

Pleistocene)

Outwash of Anisak (Itkillik Phase IB) age (late Pleistocene)

Outwash of Makpik (Itkillik Phase IA) age (late Pleistocene)

Inwash of Avan (Itkillik Phase II) age (late Pleistocene)

Inwash of Itkillik Phase I age (late Pleistocene)

Inwash of Anisak (Itkillik Phase IB) age (late Pleistocene)

Inwash of Makpik (Itkillik Phase IA) age (late Pleistocene)

Sagavanirktok River glaciation

Outwash of Sagavanirktok River age (middle Pleistocene)

Outwash of late Sagavanirktok River age (middle Pleistocene)

Outwash of early Sagavanirktok River age (middle Pleistocene)

Cutler glaciation

Outwash of Cutler age (middle Pleistocene)

BEDROCK SURFACE FORMS

[Bedrock units differentiated on basis of surface morphology only, without 

consideration of age or composition]

Bedrock, undifferentiated

Bedrock, alpine

Bedrock exposed by stream erosion

Bedrock, glacier-scoured

Bedrock, silt-covered

Bedrock, wave-eroded

Noatak National Preserve boundary

Contact—Dashed where approximately located or inferred

Fault—Expressed in Quaternary sediments or as unmodified offsets in 

bedrock. Relative motion (D, down; U, up) shown where 

determinable. Dashed where approximately located. Queried 

where uncertain

Drainage channel—Abandoned or containing underfit stream

Crest of morainal ridge—Queried where concealed and inferred

Erosional scarp

Headwall scarp of landslide

Direction of glacier flow across topographic divide

Direction of ice movement or meltwater drainage across 

ice-scoured bedrock

Direction of former meltwater flow across topographic divide

U-shaped pass—Where glacier crossed topographic divide

Pingo

Spring—Circle designates place of origin; “tail” shows flow direction

Active talus rubble—Jagged side faces upslope

Aufeis zone

Altiplanation terrace or erosion surface

Wave-eroded bedrock or surficial deposit

Water body

Glacier

fd

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io1B ii1B

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dt

Sagavanirktok

River

glaciation

Phase I

Phase II

Itkillik

glaciation

Neoglaciation

Late

Pleistocene

HOLOCENE

PLEISTOCENE

QUATERNARY

Anaktuvuk

River

glaciation

Neoglaciation

Avan

Advance

Anisak

Advance

Okak

Advance

Cutler

Advance

Older

Advance

Makpik

Advance

Western

Brooks Range

glaciations

FAN DEPOSITS ALLUVIUM TERRACE DEPOSITS COLLUVIAL DEPOSITS

SAND, SILT, AND

ORGANIC DEPOSITS

LACUSTRINE, GLACIOLACUSTRINE,

AND GLACIAL-MARINE DEPOSITS

GLACIAL DRIFT AND ICECONTACT GRAVELGLACIAL OUTWASH

AND INWASH Central

Brooks Range

glaciations General Brooks Range Mission Lowland

CORRELATION OF MAP UNITS

SURFICIAL DEPOSITS

Middle

Pleistocene

Early

Pleistocene

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R I V E R

N O A T A K

A G A S H A S H O K

R I V E R

R I V E R

N O A T A K

R I V E R

R I V E R

E L I

C r e e k

O k i o t a k

C r e e k

A k i k u k c h i a k

K a l u k t a v i k

R i v e r

N O A T A K

R I V E R

C r e e k

A k l u m a y u a k

C o t t o n w o o d

N e w

C r e e k

S e a g u l l

C r e e k

N I M I U K K T U K

R I V E R

T u m i t

C r e e k

C r e e k

O k o t a k

T r a i l

C r e e k

K U G U R U R O K

R I V E R

K a g v i k

C r e e k

A v a n

R i v e r

K E L L Y

R I V E R

P i c n i c

C r e e k

A n i s a k

R i v e r

S e t t i n g

S u n

C r e e k

Desperation

Lake

Feniak

Lake

A n i s a k

R i v e r

M a k p i k

C r e e k

N O A T A K

R I V E R

Lake

Kangilipak

H u n t R i v e r

C u t l e r

R i v e r

A m a k o m a n a k

C r e e k

I m e l y a k

R i v e r

R i v e r

A n i u k

A l o n g a r a k

C r e e k

C r e e k

D o u g l a s

F l o r a

C r e e k

A n i u k

R i v e r

K o t z e b u e S o u n d

H o t h a m I n l e t

E L I

R I V E R

N O A T A K

Noatak

I G I C H U K

H I L L S

M I S S I O N L O W L A N D

B A I R D M O U N T A I N S

T u t u t a l a k M t n.

Mount 

Bastile

Black

Mountain

M i s h e g u k

M o u n t a i n

Amphitheatre

Mountain

M o u n t a i n

S i n i k t a n n e y a k

I g g i r u k

M o u n t a i n s

Okak

Bend

A n i u k

L o w l a n d

Mt.

Angayukaqsrak

N i g u R i v e 

Howard

Pass

B R O O K S

E

G

N

A

R

D E L O N G

M O U N T A I N S

B

R

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O

K

S

G E R A N

D

L

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c

(sd)

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161°30'

67°30'

162°

162°

162°

162°30'

67°

67°

162°30'

163°

163°

67°30'

68°

162°30'

68°30'

162°

161°30'

68°30'

160°30'

161°

160°

159°

159°30'

158°30'

68°30'

158°

157°

156°30'

156°30'

157°

67°30'

157°30'

67°30' 67°30'

158°

158°30'

159°

159°30'

160°

160°30'

161°

157°30'