Vertical air photos: A15528-43, 44,45
Flight height: 20,000 feet a.s.l.; lens focal length: 6 inches
Scale: 1:37,300 (approx.)
Date: October 7, 1956
Location: Townships 13 and 14, Ranges 26 and 27 WI
Map sheets: 1:250,000 62K Riding Mountain
1:50,000 62K/3 Miniota
This stereo triplet transect across the
These photos also illustrate the use of photo interpretation criteria: tone, texture, pattern and shape.
Tone: the sediment-laden
Texture: the water surfaces are mainly smooth textured 10; whereas the valley walls, especially the east wall 11, have a mottled texture.
Pattern: elements of the checkerboard pattern of the DLS are seen in the east 12 and west 13.
Shape: the river displays the distinctive meandering form 14 with crescent-shaped cut offs 15. Curved meander scrolls 16 indicate previous positions of the river.