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Table of Contents
Foreword
Preface
Glossary

Chapter 13: Mining and Oil Extraction

13.7: Sand/Gravel Pits in Lake Agassiz Strandlines

The enormous glacial Lake Agassiz had periods of still-stand at various levels during which times substantial beaches of sand and gravel accumulated along its shores. Some of these are now exploited for sand and gravel.

On this photo a prominent strandline extends northwest/southeast 1 and is followed by a secondary gravel 2 road, its direction being a rarity in southern Manitoba. Sand/gravel is removed at several locations, the largest pit (or series of pits) being in the south 3. Two smaller pits can be seen in the north, one east 4 and one west 5 of the gravel road.

Other points to note on this photo are: a) the CN railway line in the south 6; b) the mottled surface of fields underlain by sandy soils 7; and c) some cultivated fields, resulting in a very dark tone 8.

Figure 13.7: Sand/Gravel Pits in Lake Agassiz Strandlines

Figure 13.7: Sand/Gravel Pits in Lake Agassiz Strandlines

Figure 13.7

Vertical air photograph: A16183-28

Flight height: 10,500 feet; lens focal length: 152.63 mm

Scale: 1:18,000 (approx.)

Date: July 22, 1958

Location: Township 5; Ranges 6W1 and 7W1

Map sheets: 1:250,000 62G Brandon

                    1:50,000 62G/8 Miami