1926. Geological Survey (U.S.). Relief shown by contours.; At head of title: Department of the Interior, U.S. Geological Survey. 60 x 73 centimeters Scale 1:125,000 General Map Co... U.S. Geological Survey (Washington, D.C).
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1926. Geological Survey (U.S.). Relief shown by contours. 60 x 73 Centimeters Scale 1:125,000 ; General Map Collection. U.S. Geological Survey (Washington, D.C).
1927. Geological Survey (U.S.). Relief shown by shading.; In upper margin: State of Tennessee, Division of Geology. 41 x 157 centimeters Scale 1:500,000 General Map Collection. The Survey (Washington, D.C).
1927. Geological Survey (U.S.). Relief shown by shading.; In upper margin: State of Tennessee, Division of Geology. 41 x 157 centimeters Scale 1:500,000 General Map Collection. The Survey (Washington, D.C).