Land lines unsurveyed in T. 53 N.-R. 105 W., T. 54 N.-R. 104 W., T. 54 N.-R 105 W., and in parts of T. 53 N.-R 105 W., T 54 N.-R. 104 W., and T. 54 N.-R. 105 W.
Relief shown by contours and spot heights.
Topography from aerial photographs by multiplex methods. Aerial photographs taken July 1944. Field check 1949.
1949
N4430-W10915/15.
1927 North American datum.