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

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.

Data and Resources

Metadata Source

Additional Info

Field Value
Citation Date 1982-01-01T12:00:00

Harvest Information

Original ID 66bb6bbde013946035700d274f163d0b
Index Date 2014-12-18T18:04:03Z
Original Format ISO-USGIN
Original Version 1.2


Name M.G. Mudrey, Jr., B.A. Brown and J.K. Greenberg
Position missing
Organization Wisconsin Geological and Natural History Survey
Email missing

Geographic Extent

North Bound 47.08095
South Bound 42.4918
East Bound -86.764
West Bound -92.88922