1927 North American datum., Relief shown by contours and spot heights., Forested areas overprinted in green., Topography from aerial photographs by photogrammetric methods. Aerial photographs taken 1949 and ..., 1956., N4500-W10945/15., DMA 4074 III--series V794.
1927 North American datum., Relief shown by contours and spot heights., Forested areas overprinted in green., Topography from aerial photographs by stereoplanigraph methods 1949-1950. Aerial photographs take..., 1950., N4445-W10915/15.
1927 North American datum., Relief shown by contours and spot heights., Forested areas overprinted in green., Topography from aerial photographs by photogrammetric methods. Aerial photographs taken 1949 and ..., Land lines unsurveyed except in parts of T. 55 N. Rs. 105 and 106 W. and T. 56 N., R. 106 W., 1956., N4445-W10930/15.
1927 North American datum., Relief shown by contours and spot heights., Forested areas overprinted in green., Topography from aerial photographs by multiplex methods. Aerial photographs taken 1944. Field che..., Red tint indicates area in which only landmark buildings are shown., N4430-W10900/15.
