3-Devils-grade-Moses-Coulee-Cattle-Feed-Lot-PB110016.JPG


Summary

Photo taken from Three Devil's Grade in mid- Moses Coulee in November, 2006. Taken by uploader. All rights released. Williamborg 02:08, 18 November 2006 (UTC)

The upper basalt is Roza Member, while the lower canyon exposes Frenchmen Springs Member basalt.

The Wanapum Basalt is comprised of the Eckler Mountain Member (15.6 million years ago), the Frenchmen Springs Member (15.5 million years ago), the Roza Member (14.9 million years ago) and the Priest Rapids Member (14.5 million years ago). [1]

For scale, note the cattle feed lot (square at bottom of the canyon).

References

  1. Mueller, Marge & Ted (1997) Fire, Faults and Floods , University of Idaho Press, Moscow, Idaho ISBN 0-89301-206-8

Licensing

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Captions

Three Devil's Grade in mid-Moses Coulee

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