Historic Documents

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

Link to Historic Documents Collection - NPS Geology

Link to Agate Fossil Beds: Administrative History