Glacial Striations in Devil's Postpile

About This Item

Photo of the octagonal rock formations at Devil's Postpile. The stone shows signs of glacial striation, which are parallel lines or grooves in a bedrock surface. They are formed by the deposition of loose rock material that was once embedded in a glacier that has passed over the rock surface.

Created by
Pestrong, Ray
Date
Type
Slide
Format
TIFF
Source
Ray Pestrong Geosciences Slide Collections, San Francisco State Unviersity
Locale
California
Rights
Public
Views
3345

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