Total intensity aeromagnetic map of Elkhart County, Indiana relative to arbitrary datum
Description
Includes text and location map., Imprint: [Washington, D.C.] : For sale by U.S. Geological Survey, 1950., Dimensions: 60 x 66 cm; Scale: 1:63,500, Coordinates: W0860345 W0853912 N0414537 N0412605
Creator
Dempsey, W. J., Duffner, R. T., Henderson, John R.
Dempsey, W. J., Duffner, R. T., Henderson, John R. (1950). Total intensity aeromagnetic map of Elkhart County, Indiana relative to arbitrary datum. Geological Survey (U.S.). https://purl.dlib.indiana.edu/iudl/images/VAC3073/VAC3073-M-00707 (map)