Geological Survey (U.S.). Relief shown by shading and spot heights.; "1924."; "Base from U.S. Geological Survey map of the State."; "Elevations of county seats are shown by ... engraved and printed by the U.S. Geological Survey (Washington, D.C).
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Geological Survey (U.S.). Relief shown by shading and spot heights.; "1924."; "Base from U.S. Geological Survey map of the State."; "Elevations of county seats are shown by ... engraved and printed by the U.S. Geological Survey (Washington, D.C).