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Table of Contents
Foreword
Preface
Glossary

Chapter 5: Vegetation

5.21: Beaver Dams in the Central Part of Riding Mountain National Park

The photo shows an area of mixed vegetation in the central part of Riding Mountain National Park. Deciduous trees with light tone and mottled texture 1 cover most of the area; also present are occasional patches of dark-toned coniferous trees 2 as well as scattered individual coniferous trees 3. At least one patch of coniferous trees occupies a depression 4 and is probably tamarack (Larix laricina). Some very light-toned grassland areas 5 are distributed throughout the area.

Several small streams 6 flow across the area. In some places they have been blocked by beaver dams 7 to produce lakes—very dark-toned—upstream 8. Usually the lakes are narrow occupying creek valleys 9, but in one instance water has spread over a wide area 10 killing trees. A lake that has since drained occupied another dark-toned area 11.

In this central part of the national park there is little evidence of human activity except a poorly defined trail 12 that has been flooded in two locations 13.

Figure 5.21: Beaver Dams in the Central Part of Riding Mountain National Park

Figure 5.21: Beaver Dams in the Central Part of Riding Mountain National Park

Figure 5.21

Vertical Air Photograph: A20375-169

Flight height: 10,320 feet a.s.l.; lens focal length: 152.47 mm

Date: May 21, 1968

Scale: 1:20,000 (approx.)

Location: 50°54'42” N, 100°29'10” W

Map sheets: 1:250,000 62K Riding Mountain

1:50,000 62K/16 Whitewater Lake