United States. Bureau of Land Management. Casper Field Office, author.
Cheyenne, Wyo. : U.S. Department of the Interior, Bureau of Land Management, Wyoming State Office, Casper Field Office, 2003.
2003
United States. Bureau of Land Management. Casper Field Office.
Casper, WY : U.S. Dept. of the Interior, Bureau of Land Management, Casper Field Office, [2007]
2007
United States. Office of Surface Mining Reclamation and Enforcement, author.
[Reston, VA] : U.S. Department of the Interior, U.S. Geological Survey
20--
United States. Bureau of Land Management. High Plains District Office, author.
Campbell, Wyoming : U.S. Department of the Interior, Bureau of Land Management, 2012.
2012