Topographic map of the Black Canyon of the Gunnison National Monument, Colorado.

Bibliographic Details
Corporate Author: Geological Survey (U.S.)
Format: Map
Language:English
Published: Washington : U.S. Geological Survey, 1954.
Edition:Ed. of 1950.
Subjects:
Description
Item Description:At head of title: United States Department of the Interior, Geological Survey in cooperation with the National Park Service.
"Contour interval 40 feet."
Inset: Profile of the canyon at the Narrows.
Cartographic material.
Physical Description:1 map : color ; 53 x 68 cm.