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Quaternary Geology of Richland County, Wisconsin
The topography of the Driftless Area, which was never glaciated during the Quaternary Period, is dominated by fluvial incision into flat-lying Paleozoic bedrock, resulting in deep, dendritic valleys. Local relief reaches 115 meters. Sediment coring across the region reveals that the geology of unconsolidated surficial materials is often controlled by the...-
GIS Data for Quaternary Geology of Richland County, Wisconsin [dataset 1]
2025
GIS Data: GeMS Level 3 file geodatabase (.gdb file format)
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Core Data for Quaternary Geology of Richland County, Wisconsin [dataset 2]
2025
Data: Spreadsheet (.csv file format)
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Quaternary Geology of Crawford County, Wisconsin
The topography of the Driftless Area, which was never glaciated during the Quaternary Period, is dominated by fluvial incision into flat-lying Paleozoic bedrock, resulting in deep, dendritic valleys. Local relief reaches 115 meters. Sediment coring across the region reveals that the geology of unconsolidated surficial materials is often controlled by the...-
GIS Data for Quaternary Geology of Crawford County, Wisconsin [dataset 1]
2025
GIS Data: GeMS Level 3 file geodatabase (.gdb file format)
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Core Data for Quaternary Geology of Crawford County, Wisconsin [dataset 2]
2025
Data: Spreadsheet (.csv file format)
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Quaternary Geology of Vernon County, Wisconsin
The topography of the Driftless Area, which was never glaciated during the Quaternary Period, is dominated by fluvial incision into flat-lying Paleozoic bedrock, resulting in deep, dendritic valleys. Local relief reaches 115 meters. Sediment coring across the region reveals that the geology of unconsolidated surficial materials is often controlled by the...-
GIS Data for Quaternary Geology of Vernon County, Wisconsin [dataset 1]
2025
GIS Data: GeMS Level 3 file geodatabase (.gdb file format)
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Core Data for Quaternary Geology of Vernon County, Wisconsin [dataset 2]
2025
Data: Spreadsheet (.csv 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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Wisconsin Groundwater-Level Monitoring Network Improvements, 2022-2024
This report documents work completed as part of a grant from the U.S. Geological Survey's National Groundwater Monitoring Network (NGWMN) program. It provides an overview of the Wisconsin Groundwater-Level Monitoring Network (WGLMN) and provides detailed description of well evaluation and repair activities, and drilling of new monitoring wells across the... -
Depth to Bedrock in Grant County, Wisconsin
Depth-to-bedrock mapping of Grant County provides baseline information on unconsolidated surficial sediment thickness across the county. Bedrock aquifers in Grant County are susceptible to contamination from various land use activities, and depth to bedrock represents one of several factors affecting aquifer susceptibility. The results of this study...-
Depth to Bedrock in Grant County, Wisconsin [dataset 1]
2025
GIS Data: File geodatabase (.gdb file format)
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Depth to Bedrock in Lafayette County, Wisconsin
The depth-to-bedrock raster of Lafayette County is a continuous model of surficial sediment thickness with a cell size resolution of 32.8 ft (10 m). Results show that the depth to bedrock in Lafayette County varies depending on physiographic setting. The largest values occur in the Pecatonica River valley, where more than 100 ft (30.5 m) of unconsolidated...-
Depth to Bedrock in Lafayette County, Wisconsin [dataset 1]
2025
GIS Data: File geodatabase (.gdb file format)
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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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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
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Quaternary Geology of Wisconsin
This 1:500,000 scale map of Wisconsin depicts sediment deposited by glaciers, streams, wind, and other processes during the Quaternary Period (2.58 million years ago to present). The map was made by compiling detailed Quaternary mapping and lithostratigraphic studies previously conducted by the WGNHS to generate consistent statewide Quaternary map units....-
GIS Data for the Quaternary Geology of Wisconsin (revised 2025) [dataset 1]
2025
GIS Data: GeMS file geodatabase, GeoPackage, shapefiles, metadata
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Depth to Silurian Bedrock in Eastern Wisconsin
Silurian-aged bedrock in eastern Wisconsin is shallow, fractured, and contains groundwater that is susceptible to surface water contamination. Revisions to Wisconsin state rules ATCP50 and NR151 to regulate manure spreading over this Silurian-aged bedrock create the need for a depth-to-bedrock map of eastern WI. The Wisconsin Geological and Natural...-
Depth to Silurian Bedrock in Eastern Wisconsin [dataset 1]
2025
GIS Data: File geodatabase, metadata
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Publications Catalog
Wisconsin Geological and Natural History Survey
