Manitoba has an abundant supply of surface water with many large lakes and thousands of smaller ones (chapter 2). However, much of the water is in the north or drains to the north where there is a sparse population. In the south dams and reservoirs have been constructed to conserve water in some areas, whereas in other places projects were designed to drain water from the land to make it suitable for cultivation. The province’s rivers offered enormous potential for hydroelectric power, much of which has now been exploited, starting with a small-scale project on the Little Saskatchewan River and progressing to large projects on the Winnipeg, Saskatchewan and Nelson rivers. Two thermal power stations at Brandon and Selkirk on the Assiniboine and Red rivers illustrate the need for an assurred water supply. Flooding has been a problem since the earliest days of the province, especially along the Assiniboine and Red rivers culminating in the 1997 “Flood of the Century” in the Red River Valley. Dams, diversions and ring dikes are used to divert the floodwaters to less critical areas.
This photo is unusual in that its sides are not generally east/west and north/south trending. It is part of a group taken along the northeast-flowing Souris River 1. Here the river cuts across the floor of Glacial Lake Hind, which in this area left behind dry sandy soils. Further north around Marshy Lake the land is—as the name suggests—marshy, and an artificial ditch 2 has been constructed to the Souris River to drain it. However, here numerous dugouts are needed for both domestic 3 and farm use 4.
Also notable are former courses of the Souris River 5 and partly cultivated fields 6—the cultivated areas are dark 7 compared with non-cultivated areas 8.
Vertical air photograph: A20811-35
Flight height: 10,300 feet; lens focal length: 6 inches
Scale: 1:17,400 (approx.)
Date: September 28, 1968
Location: Township 5; Range 25WI
Map sheets 1:250,000 62F Virden
1:50,000 62F/7 Hartney