1879. Geographical and Geological Survey of the Rocky Mountain Region (U.S.), Newton, Henry, 1845-1877, and Powell, John Wesley, 1834-1902. 1 in. = 4 miles. (W 104°45ʹ--W 102°15ʹ/N 44°45ʹ--N 43°30ʹ). Relief shown by contours, hachures and spot heights. "Field work 1875. Publication ... U.S. Geological Survey (Washington, D.C).
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1878. Geographical and Geological Survey of the Rocky Mountain Region (U.S.) and Powell, John Wesley, 1834-1902. 1 map : col., mounted on cloth ; 49 x 71 cm "Julius Bien, Lithographer." "The base chart was engraved for the Statistical Atlas of the United State...
1899. Gannett, Henry, 1846-1914 and Powell, John Wesley, 1834-1902. 1 map ; 53 x 81 cm Relief shown by hypsometric tints and contours.