Aeromagnetic surveying in Wisconsin 1977-98

Online link http://pubs.usgs.gov/of/1999/of99-028/
Originators Daniels, David L.; Nicholson, Suzanne W.; and Cannon, William F.
Publication U.S. Geological Survey Open-File Report 99-28
Index map showing survey areas outlined in red
Index map showing survey areas outlined in red