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You searched for: Author Tyrrell, Joseph Burr, 1858-1957.,Geological and Natural History Survey of Canada. Remove constraint Author: Tyrrell, Joseph Burr, 1858-1957.,Geological and Natural History Survey of Canada. Institution Michigan Remove constraint Institution: Michigan Year 1887 Remove constraint Year: 1887
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1. Geological map of part of Nortern Alberta and portions of the Districts of Assiniboia and Saskatchewan, Northwest Territory; by J.B. Tyrrell; Geological and Natural History Survey of Canada.

1887. Tyrrell, Joseph Burr, 1858-1957.,Geological and Natural History Survey of Canada. Relief shown by contours, hachures and spot heights. Includes cross section. Panel title: Geological map of part of Northern Alberta, N.W.T. To acc...