Historic Documents

People working in fossil quarry
Civilian Conservation Corps excavating fossils circa 1937 at fossl fern quarry on Kaibab Trail, Grand Canyon National Park, Arizona.

NPS photo.

Fossils for the future: Northern Plains Governors' Conference Proceedings
August 24-26 1992 Rapid City, South Dakota. United States. Forest Service



Last updated: April 7, 2016

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