1927 North American datum.
Relief shown by contours and spot heights.
Forested areas overprinted in green.
This map was reproduced by electronic color scanning of an earlier printing (1968).
State of Wyoming, State Engineer.
Topography from aerial photographs by photogrammetric methods. Aerial photographs taken 1953. Field check 1957.
1957.
N4100-W10730/15.
AMS 4466 II--series V774.