compiled by Ogden Tweto ; geologic compilation cartography by R.E. Schoenfeld ; technological cartography by K.T. Oetting ; prepared in cooperation with the Geological Survey of Colorado.
Relief shown by contours and spot heights.
In upper margin: Department of the Interior, United States Geological Survey.
"Contour interval 500 feet."
"Base from U.S. Geological Survey, 1969."
Bibliography in accompanying sheet.
Description based on print version record.
