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Manitoba from the Air
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Southern Manitoba, Northern North Dakota, and the Canada/U.S.A. Border

The two most obvious features on the Landsat image are Turtle Mountain 1 in blue just off the centre of the image and the great southern loop of the Souris River 2, starting at the western edge, extending almost to the southern edge, and then bending to flow north into Manitoba. A straight line 3 separates the northern part of Turtle Mountain (dark blue) in Canada from the southern part (lighter blue) in the U.S.A. where more clearing of woodland has taken place. East and west of Turtle Mountain, land use on both sides of the border is similar; consequently, the border cannot be easily distinguished, except by extension of the line that runs through Turtle Mountain 4. At the northern edge of Turtle Mountain Provincial Park, woodland clearing to the north results in a line 5 similar to that along the border.

Other features to note on the image are Whitewater Lake 6 (orange) and the string of lakes in the Pembina Valley, from west to east: Bone Lake 7, Pelican Lake 8, Lorne Lake 9, Louise Lake 10, Rock Lake 11, and Swan Lake 12. The difference in colour between Whitewater Lake and the others is probably because the former is very shallow and carries stirred-up sediment, whereas the others are deeper and carry less suspended sediment. The white patches in the northwest 13 are fair-weather cumulus clouds, whereas the white streaks across the centre 14 are probably high-level cirrus clouds.

Figure 2.5

Southern Manitoba, Northern North Dakota, and the Canada/U.S.A. Border