@book{ Solr-2764964, title = {Aeromagnetic map of the Northern part of Lake County, Minnesota}, series = {Geophysical investigations (Geological Survey (U.S.))}, editor = {Geological Survey (U.S.)}, editor = {Meuschke, J. L.}, editor = {Tyson, Natalie S.}, address = {Washington, D.C.}, publisher = {The Survey}, year = {1963}, note = {Includes note, index map, and map.}, note = {"Aeromagnetic survey flown at 500 feet above ground, 1951."}, }