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Start Over Publisher The Survey (Washington, D.C) Bounding Box -40.000931 39.999015 -39.999064 40.000987

31. United States contour map

Maps University Of Minnesota Public content
1916. Geological Survey (U.S.). Relief shown by contours. 43 x 71 centimeters Scale 1:7,000,000 General Map Collection. The Survey (Washington, D.C).

32. United States relief map

Maps University Of Minnesota Public content
1911. Geological Survey (U.S.). Relief shown by hypsometric tints and contours. 43 x 71 centimeters Scale 1:7,000,000 General Map Collection. The Survey (Washington, D.C).

33. United States relief map

Maps University Of Minnesota Public content
1899. Geological Survey (U.S.). Relief shown by hypsometric tints and contours. 53 x 81 centimeters Scale approximately 1:1,600,000, General Map Collection. The Survey (Washington, D.C).