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Search Results
1912. Geological Survey (U.S.). "Reduced from map on scale of 1:5,000,000 compiled by the U.S. Geological Survey."; "1912."; Includes insets of the Aleutian Islands and the Windwa... The Survey (Washington, D.C).
1912. Geological Survey (U.S.). Relief shown by contours and spot heights; Contour interval 100 feet. Datum is mean sea level.; Includes examples of "Conventional signs" used on t... Engraved and printed by the U.S. Geological Survey (Washington, D.C).
1912. Geological Survey (U.S.). Relief shown by contours and spot heights.; At top of sheet: Topography.; Includes "Index to Atlas sheets covering Muskingum county". 74 x 76 Centi... U.S. Geological Survey (Washington).
1912. Geological Survey (U.S.). Relief shown by contours and spot heights.; "R. B. Marshall, Chief Geographer"; "Topography by C.H. Birdseye, Geo. R. Davis ... H.L. McDonald, T.H.... The Survey (Washington, D.C).
1912. 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 90⁰30ʹ--W 90⁰00ʹ/N 38⁰45ʹ--N 38⁰30ʹ). Relief shown by contours and spot heights. Contour interval 20 feet. Datum is mean sea level. "Surve... The Survey (Washington, D.C).
1912. Geological Survey (U.S.). Relief shown by contours and spot heights. 69 x 78 centimeters Scale 1:62,500 General Map Collection. U.S. Geological Survey (Washington, D.C).
1912. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1910.";"Surveyed in cooperation with the State of Illinois.";Relief indicated by contours.;1 map, colored;45... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1912. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1908-1909.";"Surveyed in cooperation with the State of Illinois.";Relief indicated by contours and spot heig... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1912. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1910.";"Surveyed in cooperation with the State of Illinois.";Relief shown by contours and spot heights.;1 ma... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).