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Drainage
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1947
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1. Drainage map, Bartholomew County, Indiana: prepared from 1937 AAA aerial photographs
1947. Blueline.; Prepared under the supervision of: M. Parvis. Scale approximately 1:63,360.
2. Drainage map, Monroe County Indiana: prepared from 1939 AAA aerial photographs
1947. Blue line print.; Prepared under the supervision of C.J. Van Til. Scale approximately 1:65,000; Polyconic projection.