UC Berkeley GeoData Repository

Start Over Place Nevada Place Arizona Creator Geological Survey (U.S.)

1. Plan and profile, Colorado River from Lees Ferry, Arizona, to Black Canyon, Arizona-Nevada, and Virgin River, Nevada

1924. Geological Survey (U.S.). Relief shown by contours and spot heights.; Index map on each sheet. each sheet 54 x 69 centimeters or smaller Scale 1:31,680 General Map Collection. The Survey (Washington, D.C).

2. Plan and profile of Colorado River from Black Canyon, Arizona-Nevada to Arizona-Sonora boundary

1927. Geological Survey (U.S.). Relief shown by contours and spot heights.; Each sheet includes "Key map of plan sheets."; "Printed in 1927."; "19 plans, 1 profile sheet." on shee... U.S. Geological Survey (Washington).