Guano tramway in Granite Gorge
Author
R. O. Greenwalt
Article Date
January 1958
Journal Title
Des
GUANO
Canyon cable to riches
Author
B. DeWald
Article Date
January 12, 1958
Journal Title
Ariz Days and Ways
Black gold
Author
R. K. Grater
Article Date
June 1951
Journal Title
Ariz Hwys
Bat Cave bonanza
Author
A. Hamilton
Article Date
January 1958
Article Abstract
An aerial tramway to the bottom of the Grand Canyon brings out guano from a formerly inaccessible deposit
Journal Title
Westways