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Airborne Magnetic Total-Field Survey, Iron Mountain-Menominee Region, Michigan-Wisconsin, USA This data release includes the airborne magnetic survey data collected from the Iron Mountain-Menominee region of Michigan and Wisconsin. The Mineral Resources Program of the U.S. Geological Survey is tasked with understanding the nation's mineral resources. Precambrian rocks in the region are poorly mapped and understood. Detailed high-resolution airborne magnetic surveys, ground gravity surveys, and limited borehole data are being used to better understand the lithology and structure of both exposed and concealed Precambrian rocks. The primary goal of the airborne magnetic survey is to map lateral variations of magnetization that are related to differences in rock type. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: City of Iron Mountain, City of Menominee, Delaware County, Dickinson County, Marinette County, All tags... Menominee County, Michigan, USGS Science Data Catalog (SDC), Wisconsin, aeromag, aeromagnetic, aeromagnetic surveying, airborne magnetic survey, geophysics, geoscientificInformation, geospatial datasets, magnetic field (earth), magnetic surveying, Fewer tags