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Geology 101 Field Trip
University of Idaho

Our trip begins and ends in Moscow, Idaho, and covers the geological history of the area dating back to around 1.5 billion years ago.  The route illustrated below includes 9 stops at points of geological interest, primarily along the Snake River near Clarkston, Washington.  Use the links below or to the right to see photos, schematics, and text describing each stop along the field trip loop.
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STOP 1
Overview.  Introduce the 4 main geological units.
STOP 2
Granite Point.  Discuss relative dating, unconformities.
STOP 3
Columbia River Basalts.  Pillow basalts.
STOP 4
Columnar basalts.  Lewiston fold.
STOP 5
Mazama ash.
STOP 6
Lunch and Landslides.
STOP 7
Glacial mayhem.
STOP 8
The soggy saga.  Cross-cutting relationships.
STOP 9
Summary of the geological history in the area.