CGRG Bibliography of Canadian Geomorphology
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Author : Beach, H.H.and Spivak, J.
Date : 1943.
Title : The origin of Peace River canyon, British Columbia
Publication : American Journal of Science
Issue : 241:
Page(s) : 366-373



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Abstract

Peace River Canyon has cut a deep canyon 17 miles long where it leaves the Foothills of the Rocky Mountains. Evidence is presented to show that in pre-glacial times Peace River flowed through the gap between Portage and Bullhead Mountains, while Johnson Creek was cutting the lower canyon. During Pleistocene time a glacier occupied Peace Valley and deposited a terminal moraine in the gap. As the ice retreated a lake was formed back of the morainal dam. The water level was raised sufficiently to permit flow over a saddle on the west side of Bullhead Mountain and excavation of the Upper Canyon.

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Bibliography of Canadian Geomorphology