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U.S. Geological Survey (1944)

1903 edition, reprinted 1944

U.S. Geological Survey (1945)

1902 edition, reprinted 1945

U.S. Geological Survey (1945)

1903 edition, reprinted 1945.

U.S. Geological Survey (1945)

1902 edition, reprinted in 1945.

U.S. Geological Survey (1947)

U.S. Geological Survey (1942)

Unknown author (Washington: War Dept., Corps. of Engineers, U.S. Army, 1948)

Includes vegetation overprint.

U.S. Geological Survey (1947)

Unknown author (Washington: War Dept., Corps of Engineers, U.S. Army, 1944)

Unknown author (Washington: War Dept., Corps. of Engineers, U.S. Army, 1948)