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Subject
Topographic maps
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Place
Indiana, United States
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Data type
Image
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Year
1973
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1 entry found
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1. State of Indiana /compiled, edited and published by the Geological Survey.
1973. Geological Survey (U.S.). Relief shown by contours and spot heights.; Compiled in 1970.; Includes population key.; Source data U.S Dept. of the interior - Geological Survey ...