Channeled Scablands: Soap Lake to Chelan

Steven Dutch, Natural and Applied Sciences, University of Wisconsin - Green Bay
First-time Visitors: Please visit Site Map and Disclaimer. Use "Back" to return here.

Acknowledgement

I need to make it crystal clear that none of this is my own research. The pictures on this and associated pages were taken on a GSA field trip in 1994 led by Richard B. Waitt of the U.S. Geological Survey, and the interpretations presented here are largely those of Dr. Waitt as presented on the field trip and its guidebook. I thank Dr. Waitt and his colleagues for a stupendous field experience.

2.1 Soap Lake and Lower Grand Coulee

 
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands

2.3 Park Lake

Channeled Scablands
Channeled Scablands
Channeled Scablands

2.4 Dry Falls

Because every geologist needs to see this before he dies.

Channeled ScablandsChanneled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands

Upper Grand Coulee

 
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands It looks drab, but there is something powerful about this monochromatic landscape.
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands

Upper Grand Coulee at Steamboat Rock

Channeled ScablandsLooking south. Since this valley is open at both ends but carries no through-going stream, it probably formed by retreat of a huge series of cataracts. At maximum flood the water was over the cliff tops.

There is something incredibly powerful about this stark, monochromatic landscape.

Channeled ScablandsChanneled Scablands
Channeled ScablandsChanneled Scablands

Steamboat Rock

Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands

2.8 Steamboat Rock Rhythmites 

Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands

2.9a Granite-Basalt Contact

 
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands

2.9b Northrup Canyon Flood Gravels

Channeled Scablands
Channeled Scablands

Aerial Views of Upper Grand Coulee

Channeled ScablandsLooking northwest. Steamboat Rock is just below and left of center, Grand Coulee Dam at extreme upper right. Note several dry cataracts just right of the head of the lake (Banks Lake)
Channeled Scablands
Channeled ScablandsSteamboat Rock is at lower left, Grand Coulee Dam just out of the picture at upper right. Note several dry cataracts just right of the head of the lake (Banks Lake)
Channeled ScablandsLooking west. Grand Coulee Dam is at lower center where the Columbia River abruptly narrows.

2.10 Grand Coulee Dam

Channeled Scablands
Channeled ScablandsChanneled Scablands
Channeled Scablands
Channeled ScablandsChanneled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands

2.11 Crown Point Overlook

Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands

2.12 Eskers Near Sims Corner

Channeled ScablandsSeveral eskers wind across the glaciated area west of Grand Coulee Dam. 
Channeled ScablandsIt's not evident from this placid-looking photo but the wind was screaming at this stop.

2.13 Pot Hills Megablock

Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands
Channeled Scablands 

2.14 Yeager Rock

Channeled ScablandsChanneled Scablands
Channeled ScablandsLeft: the boulder is resting on till
Channeled ScablandsLooking west. Other large boulders are visible in the distance.
Channeled ScablandsLooking northwest toward the Cascades.

2.15 Lone Butte

Channeled Scablands
Channeled Scablands

2.16 Okanagan Lobe Margin

Channeled Scablands
Channeled Scablands
Channeled ScablandsDo glacial margins get any clearer than this? Rumpled till dotted with huge boulders ends abruptly against smooth unglaciated loess. Looking north.
Channeled ScablandsChanneled Scablands
Channeled Scablands Looking northeast.
Channeled ScablandsLooking southwest. Till in the foreground, loess in the valley and beyond.

2.17 Glacial Limits Near Chelan

Channeled ScablandsLooking northwest to Lake Chelan.
Channeled Scablands
Channeled Scablands

Overview
Spokane to Soap Lake
Chelan to Othello
Othello to The Dalles
The Dalles to Seattle

Return to Virtual Field Trips Index
Return to Professor Dutch's Home Page

Created 7 April 2003, Last Update 01 July 2012

Not an official UW Green Bay site