1. Surficial geology, Iroquois Falls, Cochrane District, Ontario [cartographic material] Yale Public content 1960. 2015-05-15T19:59:57Z. 2015-05-26T22:12:36Z. Geological Survey of Canada. The Survey. English. cartographic image. Public. Ontario, Frderick House Lake Region, Iroquois Falls Region, and Lake Abitibi Region.