Unidentified photographer / artist, 1962 (before), Aerial photograph illustrating typical drainage pattern developed in area underlain by Gila conglomerate. Gila County, Arizona, United States Geological Service, LL/6624
Unidentified photographer / artist 1962 (before) Aerial photograph illustrating typical drainage pattern developed in area underlain by Gila conglomerate. Gila County, Arizona United States Geological Service US Geological Service (Digital File:pnp00001)
