Marble Gorge and Grand Canyon
By: by George C. Simmons and David L. Gaskill.
Contributors: Gaskill, David L., joint author.
Series: River runners' guide to the canyons of the Green and Colorado Rivers, with emphasis on geologic features,; v. 3; Powell centennial volume; 3
Publisher: Northland Press
Published: 1969
Place of publication: Flagstaff, Ariz
Language: eng
Number of pages: 132
Subjects: Geology -- Grand Canyon (Ariz.) -- Guidebooks.; Geology -- Colorado River Valley (Colo.-Mexico) -- Guidebooks.; Grand Canyon (Ariz.) -- Guidebooks.; Colorado River Valley (Colo.-Mexico) -- Guidebooks.
Notes: Bibliography: p. 121-124.