EarthWorks Geospatial Catalog

Paleogeography of northern North America [cartographic material] / paleogeography by A. S. Dyke and V. K. Prest ; geological Cartography by the Geological Survey of Canada.

"Printed by the Surveys and Mapping Branch." "Base map at the scale of 1:12 500 000 prepared by the Geographical Services Division, Surveys and Mapping, Energy, Mines and Resources with modifications by the Geological Survey of Canada." Issued separately and to accompany: Quaternary geology of Canada and Greenland.
Geological Survey of Canada
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