Powder River tract profile, Rockpile tract, Wyoming
By: U.S. Department of the Interior, Bureau of Land Management
Contributors: United States. Bureau of Land Management. Casper District
Publisher: U.S. Dept. of the Interior, Bureau of Land Management
Place of publication: Casper, Wyo.]
Language: eng
Number of pages: 50
Subjects: Coal mines and mining; Coal reserves; Statistics; Coal leases; Environmental aspects
Other titles: Rockpile tract, Wyoming
Notes: Cover title.

Includes bibliographical references (leaves 50-52).