120°30'

47°

T. 

19

 N.

T. 

18

 N.

T. 

17 

N.

T. 

16

 N.

R. 17 E. R. 19 E. R. 20 E. R. 21 E.

R. 17 E.

R. 16 E.

R. 16 E.

R. 18 E.

R. 20 E.

R. 19 E.

R. 18 E.

R. 17 E.

R. 16 E.

R. 20 E.

R. 19 E.

R. 18 E.

T. 

20

 N.

T. 

19

 N.

T. 

18

 N.

T. 

17 

N.

T. 

16

 N.

T. 

20

 N.

T. 

19

 N.

T. 

18

 N.

T. 

17 

N.

T. 

16

 N.

T. 

20

 N.

0 5 10 MILES

0 5 10 15 KILOMETERS

SCALE 1:300 000

EXPLANATION

Extent of unit 2

 (unconsolidated deposits)

Boundary of Kittitas Basin

Rivers

Not present

Exists beneath another unit

At surface

EXPLANATION

Extent of unit 3

 (consolidated deposits)

Boundary of Kittitas Basin

Rivers

Not present

Exists beneath another unit

At surface

EXPLANATION

Extent of unit 1

 (alluvium deposits)

Boundary of Kittitas Basin

Rivers

Taneum Creek

YAKIMA

RIVER

Manastash

Creek

Cherry

Creek

Coleman Creek

Naneum

Creek

At surface

Not present

Kittitas Basin

YAKIMA

RIVER

CLE

ELUM

RIVER

TEANAWAY

RIVER

YAKIMA

RIVER

121°02'

47°

15’

T. 

21 

N.

T. 

21 

N.

T. 

21 

N.

T. 

20 

N.

T. 

20 

N.

T. 

20 

N.

T. 

19 

N.

T. 

19 

N.

T. 

19 

N.

R. 17 E.

R. 17 E.

R. 17 E.

R. 16 E.

R. 16 E.

R. 16 E.

R. 15 E.

R. 15 E.

R. 15 E.

R. 13 E.

R. 13 E.

R. 13 E.

R. 14 E.

R. 14 E.

R. 14 E.

121°02'

A

B' Cle Elum

0 5 10 MILES

0 5 10 15 KILOMETERS

SCALE 1:300 000

EXPLANATION

Extent of unit 3

 (coarse grained)

Not present

Exists beneath another unit

EXPLANATION

Extent of unit 2

 (fine grained)

Not present

Exists beneath another unit

EXPLANATION

Extent of unit 1

 (coarse grained)

Boundary of Roslyn Basin

Rivers

Boundary of Roslyn Basin

Rivers

At surface

Not present

Boundary of Roslyn Basin

Rivers

Roslyn Basin

YAKIMA RIVER

South Fork

North

Fork

Ahtanum Creek

Ahtanum Creek

NACHES RIVER

Cowichee Cr.

Extent of unit 3

 (consolidated deposits)

At surface

EXPLANATION

Boundary of Yakima Basin

Rivers

Not present

Exists beneath another unit

Extent of unit 2

 (unconsolidated deposits)

At surface

EXPLANATION

Boundary of Yakima Basin

Rivers

Not present

Exists beneath another unit

0 5 10 15 MILES

0 5 10 15 20 KILOMETERS

SCALE 1:300 000

120°

R. 15 E. R. 16 E. R. 17 E. R. 18 E. R. 19 E. R. 20 E. R. 21 E.

R. 15 E.

R. 15 E.

R. 22 E.

46°

30’

R. 23 E. R. 24 E.

R. 20 E.

R. 21 E.

R. 18 E.

R. 19 E.

R. 16 E.

R. 17 E.

R. 22 E.

R. 23 E.

R. 20 E.

R. 21 E.

R. 18 E.

R. 19 E.

R. 16 E.

R. 17 E.

R. 22 E.

R. 23 E.

 T.

13

 N.

 T.

14

 N.

 T.

12

 N.

 T.

11

 N.

 T.

13

 N.

 T.

12

 N.

 T.

12

 N.

 T.

13

 N.

 T.

12

 N.

 T.

12

 N.

Extent of unit 1

 (alluvium deposits)

At surface

EXPLANATION

Boundary of Yakima Basin

Rivers

Not present

Yakima Basin

R. 15 E. R. 16 E. R. 17 E. R. 18 E. R. 19 E. R. 20 E. R. 21 E. R. 22 E.

46°

30’

120°30’

 T.

12

 N.

 T.

11

 N.

 T.

10

 N.

 T.

 9

 N.

0 5 10 15 MILES

0 5 10 15 20 KILOMETERS

SCALE 1:300 000

Agency Creek

Toppenish

Creek

Simcoe

Creek

YAKIMA

RIVER

Toppenish

Creek

R. 18 E.

R. 19 E. R. 20 E.

R. 21 E.

R. 22 E.

R. 17 E.

R. 16 E.

R. 15 E.

 T.

12

 N.

 T.

11

 N.

 T.

10

 N.

 T.

 9

 N.

Not present

At surface

Exists beneath another unit

EXPLANATION

Extent of unit 2

 (coarse-grained unconsolidated deposits)

Boundary of Toppenish Basin

Rivers

R. 18 E.

R. 19 E. R. 20 E.

R. 21 E.

R. 22 E.

R. 17 E.

R. 16 E.

R. 15 E.

 T.

12

 N.

 T.

11

 N.

 T.

10

 N.

 T.

 9

 N.

Extent of unit 3

 (consolidated deposits Ellensburg Formation)

Not present

At surface

Exists beneath another unit

EXPLANATION

Boundary of Toppenish Basin

Rivers

EXPLANATION

Extent of unit 1

 (fine-grained unconsolidated deposits)

Rivers

At surface

Not present

Boundary of Toppenish

 Basin

R. 18 E.

R. 19 E. R. 20 E.

R. 21 E.

R. 22 E.

R. 17 E.

R. 16 E.

R. 15 E.

 T.

12

 N.

 T.

11

 N.

 T.

10

 N.

 T.

 9

 N.

Extent of unit 4

 (fine-grained Rattlesnake Ridge Member)

Not present

Exists beneath another unit

EXPLANATION

Boundary of Toppenish Basin

Rivers

R. 18 E.

R. 19 E. R. 20 E.

R. 21 E.

R. 22 E.

R. 17 E.

R. 16 E.

R. 15 E.

 T.

12

 N.

 T.

11

 N.

 T.

10

 N.

 T.

 9

 N.

Extent of unit 5

 (coarse-grained Rattlesnake Ridge Member)

Not present

Exists beneath another unit

EXPLANATION

Boundary of Toppenish Basin

Rivers

Toppenish Basin

0 5 10 15 20 MILES

0 5 10 15 20 25 30 KILOMETERS

SCALE 1:300 000

120°

47°

30’

 T.

12

 N.

YAKIMA

RIVER

YAKIMA

RIVER

Spring Creek

Mule Dry Creek

Satus Creek

Toppenish

Cr.

YAKIMA

RIVER

EXPLANATION

Extent of unit 1

 (unconsolidated deposits)

Boundary of Benton Basin

Rivers

At surface

Not present

Boundary of Eastern

 Benton subasin

Extent of unit 2

(consolidated deposits)

At surface

EXPLANATION

Boundary of Benton Basin

Rivers

Not present

Exists beneath another unit

R. 29 E.

R. 29 E.

R. 20 E. R. 21 E. R. 22 E. R. 23 E. R. 24 E. R. 25 E. R. 26 E. R. 27 E. R. 28 E.

R. 28 E.

R. 27 E.

R. 26 E.

R. 25 E.

R. 24 E.

R. 23 E.

R. 22 E.

R. 21 E.

R. 20 E.

 T.

11

 N.

 T.

10

 N.

 T.

 9

 N.

 T.

 8

 N.

 T.

 7

 N.

 T.

13

 N.

 T.

12

 N.

 T.

11

 N.

 T.

10

 N.

 T.

 9

 N.

 T.

 8

 N.

 T.

 7

 N.

 T.

13

 N.

Benton Basin

Wenas Creek

NACHES

RIVER

South Fork

YAKIMA

RIVER

46°

45’

120°30'

 T.

16

 N.

 T.

15

 N.

R. 16 E. R. 17 E. R. 18 E. R. 19 E. R. 20 E. R. 21 E.

 T.

14

 N.

 T.

13

 N.

 T.

16

 N.

 T.

15

 N.

R. 19 E. R. 20 E.

R. 17 E.

R. 16 E.

R. 18 E.

 T.

14

 N.

 T.

13

 N.

 T.

16

 N.

 T.

15

 N.

R. 19 E. R. 20 E.

R. 17 E.

R. 16 E.

R. 18 E.

 T.

14

 N.

 T.

13

 N.

EXPLANATION

Extent of unit 1 (alluvium deposits)

Boundary of Selah Basin

Rivers

At surface

Not present

EXPLANATION

Extent of unit 2 (unconsolidated deposits)

Boundary of Selah Basin

Rivers

At surface

Not present

Exists beneath another unit

EXPLANATION

Extent of unit 3 (consolidated deposits)

Boundary of Selah Basin

Rivers

At surface

Not present

Exists beneath another unit

0 5 10 MILES

0 5 10 15 KILOMETERS

SCALE 1:300 000

North Fork

Cowichee Creek

Selah Basin

KITTITAS COUNTY

YAKIMA COUNTY

COUNTY

BENTON COUNTY

KLICKITAT

COUNTY

YAKIMA

Bumping

Lake

S Fk

N Fk

Cle Elum River

Bumping River

Ahtanum Creek

Tieton River Wenas Creek

North Fork

Dry Creek

Creek

Toppenish

RIVER

YAKIMA

Satus

Creek

Cle

Elum

Lake

Rimrock

Lake

Kachess Lake

Keechelus Lake

Lake

Wallula

Teanaway River

Umtanum Creek

Little Naches River

Cowichee Creek

Cowichee Creek

River

Naches

RIVER

YAKIMA

RIVER

YAKIMA

Cle Elum

Parker

Wapato

Ellensburg

Umtanum

Kittitas

Thrall

Toppenish

Moxee City Union Gap

Yakima

Selah

Naches

Sunnyside Richland

Kiona

Kennewick Prosser

Grandview

Mabton

Satus

Zillah

Granger

Roza

Easton

Teanaway

Tieton Rimrock

Snoqualmie

Pass

Van Epps

Pass

Esmeralda

Peaks

K I T T I T A S

V A L L E Y

M A N A S T A S H

KACHESS RIDGE

R I D G E

UNION GAP

CLEMAN

MOUNTAIN

TEANAWAY

NORTH RIDGE

U M T A N U M

R I D G E

Deception

Pass

Y A K I M A

 V A L L E Y

AHTANUM RIDGE

COWICHE MTN

AMERICAN RIDGE

CLE ELUM

RIDGE

RIDGE

TOPPENISH RIDGE

R A T T L E S N A K E H I L L S

Y A K I M A R I D G E

H O R S E

H E A V E N

H I L L S

C

A

S C A

D E R

A

N

G

E

W E N AT C H E E

M O U N TA I N S

Gilbert

Peak

121°

47°

47°

30'

46°

121°30' 120°30' 120° 119°30'

46°

30'

0 5 10 20 30 40 MILES

0 5 10 20 30 40 50 60 KILOMETERS

EXPLANATION

Basins

Roslyn

Kittitas

Selah

Yakima

Toppenish

Benton

WASHINGTON

Yakima River

Basin

S. Fork

N. Fork

By

J.J. Vaccaro, M.A. Jones, D.M. Ely, M.E. Keys, T.D. Olsen, W.B. Welch, and S.E. Cox

2009

Maps Showing Location of Six Structural Basins and Extents of Basin-fill Hydrogeologic Units, Yakima River Basin Aquifer System, Washington

SCIENTIFIC INVESTIGATIONS REPORT 2009–5152

Location and extent of basin-fill units—PLATE 1

Vaccaro, J.J., Jones, M.A., Ely, D.M., Keys, M.E., Olsen, T.D., Welch, W.B., and Cox, S.E., 2009, 

Hydrogeologic Framework of the Yakima River Basin Aquifer System, Washington

Prepared in cooperation with the

U.S. DEPARTMENT OF THE INTERIOR BUREAU OF RECLAMATION, WASHINGTON STATE DEPARTMENT OF ECOLOGY, AND THE YAKAMA NATION

U.S. GEOLOGICAL SURVEY

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