Preface
1: Introduction
2: Location, Borders, and Lakes
3: Geologic Structure and Landforms
4: Climate
5: Vegetation
6: Pre-historic and Early Historic Settlements
7: Survey Systems
8: Southern Hamlets, Villages, and Towns
9: Mennonite and Hutterite Settlements
10: First Nations Settlements
11: Northern Settlements
12: The Southern Cities
13: Mining and Oil Extraction
14: Agriculture
15: Industry / Manufacturing
16: Water Resources
17: Parks, Recreation, Sports
18: Transport and Communications: Past and Present
19: Legal Issues and Law Enforcement
GlossaryChapter 5: Vegetation
Introduction
In southern and west central
Individual animals are too small to appear on all except very large-scale images. However, some animals (e.g. beaver) profoundly affect drainage systems.
5.31: Non-Oriented and Oriented Lakes South of Churchill
This area is within the northern part of the discontinuous permafrost zone near Cromarty on the Hudson Bay Railway line just off the photo to the west.
In this area peat that is typically about 2 metres thick overlies glaciomarine silt or silty till. The peat began to develop about 6500 years ago as the post-glacial
In the northeast is an elevated area—about 200 feet (61 m) a.s.l.—with spit-like ridges 8 which probably represents an old Tyrrell Sea shoreline. A spur from the Hudson Bay Railway line 9 runs to this area in a series of straight stretches avoiding lakes. Very light-tone areas 10 at the eastern end of the spur are probably sand and gravel pits exploiting the raw materials in the spit.
Figure 5.31: Non-Oriented and Oriented Lakes South of Churchill
Figure 5.31
Vertical air photograph: A14126-118
Flight height: 31,000 feet a.s.l.; lens focal length: 6.03 inches
Scale: 1:61,800 (approx.)
Date: July 1, 1954
Location of
Map sheets: 1:250,000 54L Churchill
1:50,000 54L/I Cromarty
[i] Mollard and Janes op.cit., 1984,127.