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Geology of the National Parks


field trip map

Click on number of geologic field trip stop or select a stop in the list below

Stop 1 - Dungeness River Road

Crescent Formation and pillow basalt

Stop 2 - Royal Basin

Glacier-carved lanscape and underground streams

Stop 3 -Surpise Pass

A fault, jointed basalt and it's texture

Stop 4 - Cameron Basin

Lumps in the bed, glacial features, and erosional contrast

Stop 5 - Deer Park Road

Rhythmically bedded sandstone and shale

Stop 6 - Blue Mountain

Ancient Lake Morse and diversion of Morse Creek

Stop 7 - Lake Dawn

Glacial outwash deposits and a mastodon

Stop 8 - Klahhane Ridge

Views of a volcanic field upended

Stop 9 - Big Meadow

View of Mount Olympus and formation of pencil slates

Stop 10 -Hurricane Hill Trail

Fold along the trail and upended volcanic field

Stop 11 - Obstruction Peak Road: Steeple Rock

A collapsed Pinnacle and sidehill creep

Stop 12 - Obstruction Peak Road: Eagle Rock view

The upland surface of Hurricane Ridge

Stop 13 - Grand Valley view

Highly deformed sandstone and slate

Stop 1 Stop 2 Stop 3 Stop 4 Stop 5 Stop 6 Stop 7 Stop 8 Stop 9 Stop 10 Stop 11 Stop 12 Stop 13

Material in this site has been adapted from Guide to the Geology of Olympic National Park by Rowland W. Tabor, of the USGS. It is published by The Northwest Interpretive Association, Seattle.

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