Bedrock Geologic Map of Wisconsin 1:1,000,000-Scale

Basic Information
Author: M.G. Mudrey, Jr., B.A. Brown and J.K. Greenberg
Description:This information represents a digital version of the polygon units shown on "Bedrock Geologic Map of Wisconsin," originally published in 1982 at a scale of 1:1,000,000. The bedrock geology shown is a lithostratigraphic interpretation of the consolidated (rock) units present at the land surface or, in most areas, the first consolidated (rock) unit encountered beneath variable thicknesses of unconsolidated glacial sediment. The data include not only the distribution of the various bedrock units, but also a general description of the lithologic character and nomenclatural identification. This dataset provides users with a digital representation of the distribution of the bedrock units in Wisconsin and should not be used for site-specific geologic assessment.
Publication Date:
Author Contact Information
Distributor Contact Information
Organization Name: Wisconsin Geological and Natural History Survey
Street: 3817 Mineral Point Road
City: Madison
State: WI
Zip: 53705-5100
Phone: (608) 263-7386
Geographic Extent
North Bounding Latitude: 47.08095
South Bounding Latitude: 42.4918
East Bounding Longitude: -86.764
West Bounding Longitude: -92.88922