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Table of Contents
Foreword
Preface
Glossary

Chapter 7: Survey Systems

7.20: Contact Between the First and Third Systems of the DLS North of Roblin

This photo shows the complicated contact between the First and Third Systems in western Manitoba. The dashed line on the overlay indicates the contact between the two. The southern half of the area is in township 26 and was therefore surveyed using the First System. The eastern boundary of range 29 WI 1 can be traced north to the township 26/27 line 2 where it jogs over a mile (1.6 km) to the west 3 before continuing north 4. Land in township 27, range 29 WI was also surveyed using the First System. East of range 29 WI, north of township 26, is range 29A which is just over one section wide 5; east of this is range 28 WI. In ranges 28 WI and 29A, township 27 is only four sections deep 6, and it and township 28 are surveyed using the Third System.

It is noticeable that there is a small jog between townships 26 and 27 in the east 7 (this is the contact between the First and Third Systems), whereas in the west in range 29 WI, which is all surveyed in the First System, the jog is well over a mile 8.

The area is covered by ground moraine dotted by lakes, for example, Roblin Lakes in the south 9. Two misfit streams flow in large valleys created by melt water from ice on Duck Mountain (off the photo to the north). In the east is the Shell River 10 which meanders inside a large valley, which itself has a meandering path 11 in harmony with its once large discharge. In the west is Big Boggy Creek 12 in a wooded, steep-sided valley 13 that flows to the Assiniboine in the west, just off the photo—or more correctly to Lake of the Prairies created by the damming of the Assiniboine River near Shellmouth.

Roblin 14 in the south is a transport hub. The CN line runs through it and then northward along the valley of Big Boggy Creek 15. Roads in Roblin are oriented with respect to the railway line. Also, PTH 83 runs north/south 16 and PTH 5 east/west 17, both passing through Roblin.

Figure 7.20: Contact Between the First and Third Systems of the DLS North of Roblin

Figure 7.20: Contact Between the First and Third Systems of the DLS North of Roblin

Figure 7.20

Vertical air photograph: A21750-43

Flight height: 24,120 feet a.s.l.; lens focal length: 88.85 mm

Scale 1:79,200 (approx.)

Date: July 27, 1970

Location: Townships 26, 27, and 28; Ranges 28, 29A and 29WI

Map sheets: 1:250,000 62N Duck Mountain

1:50,000 62N/6 Burrows Lake