National Geologic Map Database
General Information
- Title: Exploratory drilling in the Prairie du Chien Group of the Wisconsin zinc-lead district by the U.S. Geological Survey in 1949-1950
- Author(s): Heyle, A.V., Lyons, E.J., and Agnew, A.F.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Circular 131
- Publication Date: 1951
- Map Scale: 1:5,600
- Cross Section: Yes
- North Latitude: 42° 56' 31" N (42.9420)
- South Latitude: 42° 30' 0" N (42.5000)
- East Longitude: 90° 9' 40" W (-90.1610)
- West Longitude: 90° 30' 0" W (-90.5000)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.