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Start Over Year 1882 Publisher U.S. Geological Survey (Washington, D.C.) Bounding Box -40.000931 39.999015 -39.999064 40.000987

1. The topographic maps of the United States [standard symbols].

Maps University Of Illinois Urbana Champaign Public content
1882. Geological Survey (U.S.). Chart of standard map symbols used on U.S. topographic maps.;Map on verso.;1 chart, illustrated;56 x 44 cm. U.S. Geological Survey (Washington, D.C.).

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