https://geoscan.nrcan.gc.ca/starweb/geoscan/servlet.starweb?path=geoscan/fullf.web&search1=R=100382
1970
Exposed rocks in the Simpson Lake map-area belong to the Cambrian, Ordovician, Devonian, and Cretaceous Systems. About 2000 feet of Paleozoic rocks, chiefly...
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