Geologic map and distribution of heavy minerals in Tertiary rocks of the Gillette 30' x 60' Quadrangle, Campbell, Crook, and Weston counties, Wyoming

I-2023 Geologic map and distribution of heavy minerals in Tertiary rocks of the Gillette 30' x 60' Quadrangle, Campbell, Crook, and Weston counties, Wyoming, scale 1:100,000, 1989, ISBN 978-0-607-79183-9 Keywords: Crook county, Campbell county, Geologic map, Bedrock, Powder river basin