1904. Barnard, E. C. (Edward Chester), 1863-1921. Shows Alaska with areas of coal bearing rocks in red and coal seams in green.; Includes legend.; Relief shown by contours and spot heights.; Inset:... The Survey (Washington, D.C).
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1904. Cooke, Chas. E., Geological Survey (U.S.), Hawkins, Geo. T., Tufts, Wm. O., U.S. Coast and Geodetic Survey, Wilson, Herbert M. (Herbert Michael), 1860-1920, and Young, Gilbert. (W 90⁰25ʹ--W 90⁰05ʹ/N 38⁰44ʹ--N 38⁰31ʹ). Relief shwon by contours and spot heights. Text and ill. on verso. 39 x 47 centimeters Scale 1:62,500 ... The Survey (Washington, D.C).