Level of dye release

Hooperwell

Park office well

Park picnic well

Daltonwell

Woody wellGossiwell

Bruneau Plateau

Malad Gorge

Snak

e Ri

ver

landslidelandslide

landslidesL a

n d

s l I

d e

s Woody’s Cove

GFF outcrop

Pillow outcrop

L a n d s l I d e s

L a n d s l I d e s

Snake River to Malad Gorge Profile3,379

Bruneau Plateau

Ele

vatio

n (ft

. ab

ove

M.S

.L.)

2,657

2,723

2,789

2,854

2,920

2,986

3,051

3,117

3,182

3,248

3,3143,281

2,690

2,756

2,822

2,887

2,953

3,018

3,084

3,150

3,215

3,346

2,426

Snak

e R

iver

Deer Gulch Basalt

Basalt andregional aquifer

Tuana Gravel fm.

Glens Ferry Formation

(GFF)

Clay & silt

Faul

t ?

Bas

alt

B a

s a

l t

Bas

alt

L. Woodywell 361 ft.

Park office well 410 ft.

Park picnic well

Hooperwell

Dalton well 280 ft.

P. Gossi well 505 ft.

Bas

alt

B a

s a

l t

Woo

dy’s

cov

e

Mal

ad G

orge

Land

slid

e

sedi

men

tsGFF

Basalt

•Graben?•Basalt? •deep aquifer?

water table

Vertical offset ? approx. 50 ft.

GFF

B a

s a

l t

valley fill Basalt

sedi

men

ts

sedi

men

ts

Fault or erosional feature?