Topographic map of the Grand Canyon National Monument, Arizona /

Bibliographic Details
Corporate Authors: Geological Survey (U.S.), United States. National Park Service
Format: Map
Language:English
Published: Washington : U.S. Geological Survey, 1972.
Edition:Ed. of 1944.
Subjects:
Description
Item Description:At head of title: United States Dept. of the Interior, Geological Survey, in cooperation with the National Park Service.
"Polyconic projection; 1927 North American datum."
"Contour interval 50 feet."
Map.
Physical Description:1 map : color ; 76 x 104 cm.