• WASHINGTON STATE DEPARTMENT OF

Natwal Resources JoM!fw I,\ 11-=lwr -Commlul- of l'ublk Lands hlwll cmr,.i-n-su,.n,r-

120° 15' 46° 30'

T 12 N

T 11 N

27 30

•••

'"'

'

-, c,fi9

•••

' ' ' / j> / L-

,/~/ / ;; ! (

/c/ ' . ./ j

25' # /

"(1

T 11 N '---"'--'' , T 10 N

•••

...

---

"ll

I

20'

" '

. . ' •

>

I ,, I

J

o.m

\ \ ' _,

~ -, _ _! \

' '' " " I

•«}·

'·

' .. o~O

'' '

Qom

19

"'

' i

. '

Qam

I ' '

J

_J

,~--------- +,,,

""

""

~ - --/ ""

/ OU

"""•

"-' ~

~ -. /, ,-.._ 710 _,_ . . f"

C, k

Ban map prepared from U.S. Geological Survey 7.S·mlnute Granger NW (1965). Granger NE (1964), Granger (1965), and Sunnyside (1965) quadrangles; 1927 North American datum

10,000-foot grid bas«! on Washington coordinate system, south zone 1000-m«:er Unlvusal Transverse Mercator grid ticks, zone 10

Intent•!• and primary roads updated from Washington State Department of Tr11nsportat!on, 1991 (Granger NW, Granger, Sunnyside)

/~77 II s .. !BLACK ROCK SP

' 1: ,,

I

/ I L,_

~ / ,,,, /.:7.••· I

/ ( / BAIH< , AD

;-

* J··_L 3l WILS H3 WILS

' I \I

un11 GRID ANO 196S MAGNETIC NORTM

DEC LINATION AT CENTER 0~ GRANGER 7.5' SMHT

'" F'

,'

\ \ !

""\;

I '/

/

,' / Of•

,,,

I HI'/

r'

,1 __ :_ '' -'·· /! "' " ') ' I

! - _,. ~,'i / ,' ;)/f, I I'

I

i

) I .' 1,,' I ,I '';,1.· ilj:'i ''; t,

j ,. // I \' [/ • ,/ ..

f" ,'/ ,,i I 2'--? -;/J \ : / . ,.

\oom \

..•

/

,'·t-c ( './,'

SCALE L 31,680

,1

H

...

'

I ~ IL[

] XILOM[l (II

I ·1

' 1

'

I I I

o.m " \' / '~

\ ' \

; '

,-1;

I: 21{

J-~f7"'"'· ~· -··"~ ltf~,---"'· ." · ---·

(

WASHINGTON

• QUADRANGLE LOCATION

• ' i '

' !

\

(

I(

..

1 .. ~, ____., _ _,, I

-, (

'

I I ,

\ - .-, ·

-- -, _,./• \ l,J---"'-"'' ·-~ -1--

t I 'd-\~-- ,/ \ . .._

}"' '-'J 1.

" ! I -_-j/'

.. -"-

25'

""

"38

370000

""

20'

"" T 10 N

TON

,131

- 17'30'

"' _____ J __ _

' ,., ~<IV"'."

,-"'r~r '-:._ -,,

""

Waahlntlton Dlvlalon of Geology and Earth ReoourcH Open FIi• Report 93-3

She•t 4-Gran .. r IS-111lnut• quadraft111•

GEOLOGIC MAPS OF PART OF

THE YAKIMA FOLD BELT,

NORTHEASTERN YAKIMA COUNTY, I

WASHINGTON

by Robert D, Bentley, Newell P. Campbell,

and John E. Powell

1993

GEOLOGIC UNITS

Svrflclal clepo,u,

Oam Alluvium, mainstream fades

a.,

Otm,

0,1

01,

a,

Alluvium, sidestream fades

Terrace deposits, mainstream alluvial deposits

Lower terrace deposits

Alluvial fan deposits

Landslide deposits

Eolian deposib

Ofs Catastrophic flood slackwater sediment&

Oa!o Older alluvial Ian deposits

Too

Tom

Tp

Tp,

T,

T,

Tee

Ellensburg Formation

Upper Ellensburg Formation, undivided

Conglomerate of Snipes Mountain

Rattlesnake Ridge Member

Columbia River Basalt Group

Saddle Mountains .... It

Elephant Mountain Member

Pomona Member

Umatilla Member

Wanapum Basalt

Priest Rapids Member

Roza Member

Frenchman Springs Member

EXPLANATION

Contact---dashed where approxlmately located

Thrust fault-Dotted where concealed; sawteeth on upper plate

--+-------!--Anticline-Showing direction of plunge; dotted where concealed

S!,,'.ncline-Showlng direction of plunge; dotted where concealed

Monocline-dotted where concealed; arrows on side1

with greater lncllnatlon

Strike and dip of inclined beds

... Geochemical sample locality

Mount St. Helens S ash