EarthWorks Geospatial Catalog

Phanerozoic bedrock geology, Lake Athabasco, Alberta-Saskatchewan [cartographic material] / geological compilation by A. V. Okulitch, 2004.

Relief shown by contours and spot heights. "Base map at the same scale, published by Surveys and Mapping Branch in 1977. Minor revisions from maps MCR 2 and 3, scale 1:2 000 000, published by the National Atlas Information Service, 1990."
Geological Survey of Canada
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