-60 -56 -52 -48 -44 -40 -36 -32 -28 -24 -20 -16 -12 -8 -4 0 4 8 12 16 20 24 28 32 Isostatic gravity, in milligals

20 00

2000

2000

2 500

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2 000

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2 000

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2000

2500

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1500

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2 000 2 000 2 000

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050

1 500

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1 000

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1 500

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2 000

3 000

2 000

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2

0 00

2

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2 0 00

2 000

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1 500

1 500 1500

1 500

1 500

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25 00 2500

2 500

2 000

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1500

1

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1 000

1 000

1 000

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1 000

1000

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500

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1 000

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1 500 1 500

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1 500

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10 00

1

0 00

1000

1000

1000 1000

1000

1000

10 00 1000

1 0 00

1 000

1 000

1000

1 000

1 500

1500

1500

1 0 00

1000

1000

1 0 00

1000

10 00

1000

1000

10 00

2 000

15

00

1 500

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10 00

10 0 0

1 000

1 0 00

1000

1000

1000

1000

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1 500

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1 500

1500

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1 5 00

1500

1 000

10 00

1000

1000

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1 0 00

10 00

1 000

1500

1500

1000

1000

1000

1 000

15 00

1 500

15 00

15 00

1 50 0

10 00

U.S. NAVAL

NEVADA

TEST

SITE

118 00 00 115 00 00 117 30 117 00 116 30 116 00 115 30

118 00 00 115 00 00 117 30 117 00 116 30 116 00 115 30

35 00 00

38 15 00

35 00 00

38 15 00

35 30

36 00

36 30

37 00

37 30

38 00

35 30

36 00

36 30

37 00

37 30

38 00

U.S. NAVAL

WEAPONS

WEAPONS

CENTER

CENTER

FORT IRWIN MILITARY RESERVATION

NELLIS

NELLIS

AIR FORCE

AIR FORCE

RANGE

RANGE

DESERT

NATIONAL

WILDLIFE

RANGE

EAST MOJAVE

NATIONAL

SCENIC AREA

DEATH VALLEY

NATIONAL

Las Vegas

Ridgecrest

NEVADA

NEVADA

NEVADA

CALIFORNIA

CALIFORNIA

CALIFORNIA

Mono Co

Inyo Co

Inyo Co

Inyo Co

Inyo Co

Inyo Co

Kern Co

Kern Co

San Bernardino Co

San Bernardino Co

San Bernardino Co Clark Co

Clark Co

Clark Co

Lincoln Co

Lincoln Co

Nye Co

Nye Co

Nye Co

Nye Co

Esmeralda Co

Mojave Desert Devil's Playground

D

e

a

t

h

V

a

l

l

e

y

E l

P a s o

M o u n t a i n s

F r e m o n t

V a l l e y

R a n d

M t n s

L a v a

M t n s

G r a v e l

H i l l s

S

u p e

r i

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V a l l e y

I

n

d

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a

n

W

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V

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S

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C

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A

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Owens

Valley

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R

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C

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P

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Tucki

Mountain

Q u a i l M n t s .

O

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G r a n i t e M o u n t

a i

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A v a w a t z

M o u

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F

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Kingston

Range

M e

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M

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C

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M

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M i d

H i l l s

N

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Y

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M

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Lanfair

Valley

M

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B

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Las Vegas

Valley

S p

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d

R

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n

g

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S p e c t e r

R a n g e

Frenchman

Flat

Flat

Flat

Flat

Flat

Flat

Skull Mounatin

Shoshone Mountain

Bare

Lookout

Peak

Crater

Y

u

c

c

a

M

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n

t

a

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Jackass

Flats

H

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f

P

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R

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Mountain

Mountain

Yucca

E

l

e

n

a

R

a

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Timber

Gold

S l a t e R i d g e

Gold

Mountain

Mnt.

Mountain Mountains

Valley

Valley

Valley

Valley

Valley

Valley Valley

Magruder

Palmetto

F

i

s

h

L

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V

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S

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P

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R

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M

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z

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R

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Weepah

Hills

Clayton

G

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d

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d

H

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s

Stonewall

Stonewall

C

Cactus

a

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R

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Black

P a h u t e

M e s a

K

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R

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C

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Reveille

Kawich

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R

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R

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R

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Railroad

Emigrant

G

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R

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Sand

Spring

Tikaboo

P

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E

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Range

Mountains

T i m p a h u t e R a n g eWorthington

Ash

Meadows

Esmeralda Co

Valley

Smokey

Big

Range

Cristo

Monte

San Antonio Mountains

Mountain

Lone

Valley

Ralston

Range

Monitor

Stone Cabin

Valley

Q u

i n n

C a n y o n

R a n g e

Valley

Garden

Coal

Valley

G

o

l

d

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n

G

a

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R

a

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g

e

PARK

i

P

a

h

r

a

n

a

g

a

t

V

a

l

l

e

y

Quartzite

Mountain

Papoose Range

Mountain

Silent Canyon

Thirsty Canyon

Oasis

Valley

a

Helen

Mount

Mtn

Mellan

Hills

Lizzard

Mine

Mountain

CP

Hills

Stripped

Hills

Fortymile Canyon

Rock Valley

Mercury

Valley

Ranger

Mountains

Buried Hills

Fallout

Hills

Three

Lakes

Valley

Jumbled Hills

Lake

Alkali

Mountains

Montgomery

Eagle

Mtn

Valjean

Valley

Ibex Hills

Saddle Peak

Hills

Salt Spring

Hills

Sperry

Hills

Dumont

Hills

Wingate Wash

Death Valley

Darwin

Plateau

Darwin Hills

Hunter

Mountain

Racetrack Valley

Ubehebe

Peak

Dry

Mountain Tin

Mountain

Furnace Creek Wash

Blue

Diamond

Hill

Amargosa

Flat

Yucca

Forest

Sarcobatus Flat

Lida Valley

Bonnie Claire Flat

Monotony

Valley

Chalk

Mtn

Death Valley

Junction

Furnace

Creek

Badwater

Shoshone

Mercury

Beatty

Goldfield

Coaldale

Silver

Peak

Tonopah

Rachel

Hiko

Alamo

Indian Springs

Pahrump

Baker

Tecopa

Trona

China Lake

CONTOUR INTERVAL 100 METERS

ISOSTATIC GRAVITY MAP OF THE DEATH VALLEY GROUND-WATER MODEL AREA, NEVADA AND CALIFORNIA

By

D.A. Ponce, R.J. Blakely, R.L. Morin, and E.A. Mankinen

2001

Base from U.S. Geological Survey, 1:100,000

Tonopah, Warm Springs, Quinn Canyon Range,

Goldfield, Cactus Flat, Timpahute Range, Last

Chance Range, Pahute Mesa, Pahranagat Range,

Saline Valley, Beatty, Indian Springs, Darwin Hills,

Death Valley Junction, Las Vegas, Ridgecrest,

Owlshead Mountains, Mesquite Lake, Cuddeback

Lake, Soda Mountains, and Ivanpah DLG and DEM

data, 1999.

Projection and 10,000-meter grid, zone 11

Universal Transverse Mercator

25,000-foot ticks based on California coordinate

system, zones 4 and 5 and Nevada coordinate

system, east, west, and central zones.

1927 North American Datum

NOTE: Small black triangles on the map are gravity stations.

Manuscript approved for publication November 21, 2001

Any use of trade names in this publication is for

descriptive purposes only and does not imply

endoresement by the U.S. Geological Survey

This map was produced on request, directly from

digital files, on an electronic plotter

For sale by U.S. Geological Survey Information Services

Box 25286, Federal Center, Denver, CO 80225

1-888-ASK-USGS

ARC/INFO coverages and a PDF file for this map are available at

http://geology.cr.usgs.gov/greenwood-pubs.html

MISCELLANEOUS FIELD STUDIES MAP MF-2381-C

Version 1.0

Pamphlet accompanies map

Prepared in cooperation with the

NEVADA OPERATIONS OFFICE, U.S. DEPARTMENT OF ENERGY (INTERAGENCY AGREEMENT DE-A108-96NV11967)

U.S. DEPARTMENT OF THE INTERIOR

U.S. GEOLOGICAL SURVEY

14 

APPROXIMATE MEAN

DECLINATION, 1993

MAGNETIC NORTH

TRUE NORTH

CALIF.

MAP LOCATION

NEVADA

DEATH VALLEY GROUND-WATER

MODEL BOUNDARY

DEATH VALLEY GROUND-WATER

MODEL BOUNDARY

SCALE 1:250 000

5 5 0 10 15 20 25 KILOMETERS

5 0 5 10 15 20 MILES