Surveys at Great Bear Lake, 1931

CIM Bulletin1932
GREAT Bear lake, the fourth largest body of water on this continent, comprises an area of approximately 12,000 square miles, and is set astride the Arctic circle, with a large portion of it witnessing both the Arctic winter night, and the Arctic summer day with its midnight sun. The very name itself, Great Bear, suggests an Arctic region .
Keywords: Air, Arctic, Canadian, filar micrometer, Great Bear Lake, prime vertical, Royal Canadian Air Force, Ice, North, Route, Survey, Surveys, Water, Waters
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