The Black Canyon of the Gunnison in depth
By: by Wallace R. Hansen.
Edition: Rev. 2nd ed.
Publisher: Southwest Parks & Monuments Association
Published: 1987
Place of publication: Tucson, Ariz
Language: eng
Number of pages: 58
Subjects: Geology -- Colorado -- Black Canyon of the Gunnison National Monument Region
Notes: Bibliography: p. 56-58.
"First published as U.S. Geological Survey Bulletin 1191"--T.p. verso.