1887. Geological and Natural History Survey of Canada and Tyrrell, Joseph Burr, 1858-1957. 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...
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1884. Dawson, George Mercer, 1849-1901 and Geological and Natural History Survey of Canada. Relief shown by hachures and spot heights. Includes cross section from Coal Creek to Medicine Hat. 1 map: col.; 59 x 66 cm.