Coal fields of Grand Mesa and the West Elk Mountains, Colorado
By: by Willis T. Lee.
Series: U.S. Geological survey. Bulletin 510
Publisher: Government print. off.
Published: 1912
Place of publication: Washington
Language: eng
Number of pages: 237
Subjects: Coal mines and mining -- Colorado.; Coal -- Colorado.
Notes: At head of title: Department of the Interior.
Title vignette.