Canada

Northwest Territories

Sabine Bay, June 1974 Latitude: 75.25.1 N Longitude: 109.59.3 W

Digging a Pit     Since the ground was frozen solid year round, it was not possible to dig a sump using conventional means such as a Cat or excavator so a seismic drill was used to drill a set of holes and the sump was then blasted. A Cat was then able to clean out the remaining dirt.      The permafrost in the area went down to between 900 feet and 1400 feet.

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