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Geologic map of the Stitzer and western part of the Montfort 7.5-minute quadrangles, Grant County, Wisconsin
The geologic map of the Stitzer and western part of the Montfort quadrangles includes 1:24,000-scale mapping of both surficial and bedrock geology. This area occurs at the northern margin of the historic Upper Mississippi Valley lead and zinc mining district. Paleozoic strata are folded into a regionally-significant anticline, and mapping was initiated to...-
Geologic map of the Stitzer and western part of the Montfort 7.5-minute quadrangles, Grant County, Wisconsin
2023
Map: 46.15 in x 36 in, scale 1:24,000
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GIS data for geologic map of the Stitzer and western part of the Montfort 7.5-minute quadrangles, Grant County, Wisconsin [dataset 1]
2023
GIS Data: GeMS file geodatabase, shapefiles, metadata
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Geologic Map of the Highland West and Highland East 7.5-Minute Quadrangles, Grant and Iowa Counties, Wisconsin
The geologic map of the Highland West and Highland East 7.5-minute quadrangles includes 1:24,000-scale mapping of both surficial and bedrock geology. Highland was a long-lived and important sub-district of the Upper Mississippi lead-zinc mining area in the 19th and 20th centuries. Recent and renewed interest in the presence and distrubution of critical...-
Geologic Map of the Highland West and Highland East 7.5-Minute Quadrangles, Grant and Iowa Counties, Wisconsin
2024
Map: 46 in x 36 in, scale 1:24,000
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GIS Data for the Geologic Map of the Highland West and Highland East 7.5-Minute Quadrangles, Grant and Iowa Counties, Wisconsin [dataset 1]
2024
GIS Data: GeMS file geodatabase, shapefiles, metadata
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Geologic Map of the Fennimore and Mount Hope 7.5-Minute Quadrangles, Grant County, Wisconsin
The geologic map of the Fennimore and Mount Hope quadrangles includes 1:24,000-scale mapping of both surficial and bedrock geology. The mapping was initiated to support groundwater studies in the area. The map and accompanying report present the Paleozoic bedrock stratigraphy, including structures, as well as data from three new bedrock drill cores...-
Geologic Map of the Fennimore and Mount Hope 7.5-Minute Quadrangles, Grant County, Wisconsin
2023
Map: 50.55 x 36 in, scale 1:24,000
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GIS Data for the Geologic Map of the Fennimore and Mount Hope 7.5-Minute Quadrangles, Grant County, Wisconsin [dataset 2]
2023
GIS Data: GeMS file geodatabase, metadata
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Geologic Map of the Durwards Glen 7.5-Minute Quadrangle, Columbia and Sauk Counties, Wisconsin
The Durwards Glen 7.5-minute quadrangle map is located in Columbia and Sauk counties, southeast of the city of Baraboo. This geologic map includes Precambrian through Quaternary units. New mapping has focused on subdividing the Baraboo Quartzite into four separate members and delineating Quaternary deposits in greater detail than prior work.-
Geologic Map of the Durwards Glen 7.5-Minute Quadrangle, Columbia and Sauk Counties, Wisconsin
2024
Map: 35 x 40 in, scale 1:24,000
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GIS Data for the Geologic Map of the Durwards Glen 7.5-Minute Quadrangle, Columbia and Sauk Counties, Wisconsin [dataset 1]
2024
GIS Data: GeMS file geodatabase, shapefiles, geopackage, metadata
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Geologic Map of the North Freedom 7.5-Minute Quadrangle, Sauk County, Wisconsin
The North Freedom quadrangle is located on the South Range of the Baraboo Hills in south-central Wisconsin. The Baraboo Hills are recognized for their ecologic and geologic significance, with superb exposure of Precambrian and Paleozoic rocks and Quaternary sediments. Mapping focused on the Precambrian section, building on past work by subdividing and...-
Geologic Map of the North Freedom 7.5-Minute Quadrangle, Sauk County, Wisconsin
2020
Map: 40 in x 37 in, scale 1:24,000
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GIS Data for the Geologic Map of the North Freedom 7.5-Minute Quadrangle, Sauk County, Wisconsin (version 2) [dataset 1]
2020
GIS Data: GeMS file geodatabase, shapefiles, and metadata. Supersedes previous file geodatabase format (DI version 1)
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Geologic Map of the Ferryville and Lansing 7.5-Minute Quadrangles, Crawford County, Wisconsin
The geologic map of the Ferryville and Lansing 7.5-minute quadrangles (Crawford County), located in the Driftless Area of southwestern Wisconsin, provides new observations and lithologic descriptions of the area's geology. This work supports the Wisconsin Department of Transportation's ongoing efforts to mitigate slope failures along the Wisconsin State...-
Geologic Map of the Ferryville and Lansing 7.5-Minute Quadrangles, Crawford County, Wisconsin
2025
Map: 41.5 in x 30.75 in, scale 1:24,000
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GIS Data for the Geologic Map of the Ferryville and Lansing 7.5-Minute Quadrangles, Crawford County, Wisconsin [dataset 1]
2025
GIS Data: GeMS Level 3 file geodatabase (.gdb file format) and GeoPackage (.gpkg file format)
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Geologic Map of the Eastman and Harpers Ferry 7.5-Minute Quadrangles, Crawford County, Wisconsin
The geologic map of the Eastman and Harpers Ferry 7.5-minute quadrangles (Crawford County), located in the Driftless Area of southwestern Wisconsin, provides new observations and lithologic descriptions of the area's geology. This work supports the Wisconsin Department of Transportation's ongoing efforts to mitigate slope failures along the Wisconsin...-
Geologic Map of the Eastman and Harpers Ferry 7.5-Minute Quadrangles, Crawford County, Wisconsin
2025
Map: 36 in x 32.5 in, scale 1:24,000
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GIS Data for the Geologic Map of the Eastman and Harpers Ferry 7.5-Minute Quadrangles, Crawford County, Wisconsin [dataset 1]
2025
GIS Data: GeMS Level 3 file geodatabase (.gdb file format) and GeoPackage (.gpkg file format)
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Geology of the Baraboo Hills, Sauk and Columbia Counties, Wisconsin
Located in the south-central portion of the state, new geologic mapping of the frequently-visited Baraboo Hills has resulted in a revision of the stratigraphy of the Precambrian-aged bedrock. The Baraboo Quartzite is now divided into four informal members, and the maximum depositional age for the Baraboo Quartzite is 1714±17 million years old. These...-
Geology of the Baraboo Hills, Sauk and Columbia Counties, Wisconsin [plate 1]
2025
Map: 48.25 in x 29.25 in, scale 1:50,000
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GIS Data for Geology of the Baraboo Hills, Sauk and Columbia Counties, Wisconsin [dataset 1]
2025
GIS Data: GeMS Level 3 file geodatabase (.gdb file format) and GeoPackage (.gpkg file fomat)
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Bedrock Geology of Grant County, Wisconsin
Three-dimensional bedrock mapping of Grant County at a scale of 1:100,000 provides new baseline information on the distribution of geologic units. Grant County contains Paleozoic bedrock units ranging in age from Silurian to Cambrian. Gentle folds and small faults deform the Paleozoic sequence and were mapped based on structure contours of the base of the...-
GIS Data for Bedrock Geology of Grant County, Wisconsin [dataset 1]
2025
GIS Data: GeMS Level 3 file geodatabase (.gdb), GeoPackage, metadata
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Geochemical Data for Bedrock Geology of Grant County, Wisconsin [dataset 2]
2025
Data: Spreadsheet (.csv)
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GIS Data for Bedrock Geology of Grant County, Wisconsin [dataset 3]
2025
GIS Data: File geodatabase (.gdb) raster datasets, metadata
Publications Catalog
Wisconsin Geological and Natural History Survey
