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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 [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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Geologic Map of Mill Bluff State Park, Monroe and Juneau Counties, Wisconsin
The geologic map of the Mill Bluff State Park provides a detailed look at the bedrock geology present at one of Wisconsin's most cherished natural sites. The map and accompanying report present the Paleozoic bedrock stratigraphy of the visible formations, as well as an interpretation of their depositional environment. This map was created as part of an...-
Geologic Map of Mill Bluff State Park, Monroe and Juneau Counties, Wisconsin
2024
Map: 24 x 36 in, scale 1:12,000
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Chequamegon-Nicolet National Forest Water Quality Database
The Chequamegon-Nicolet National Forest (CNNF) in northern Wisconsin contains numerous groundwater-dependent water resources that may be vulnerable to potential effects of land development, mining, and climate change. In order to monitor water quality over time, 138 of the lakes, streams, wetlands, spring ponds, springs, and wells were sampled in... -
Wisconsin Groundwater-Level Monitoring Network Improvements, 2020-2022
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... -
Bedrock Geology of Jefferson County, Wisconsin
Located in southeast Wisconsin, Jefferson County is almost entirely blanketed by sediments that were delivered or shaped by the ice sheet that covered this area during the last ice age. New mapping interprets the distribution of the bedrock surface that is buried beneath those glacial sediments as interpreted by three drill cores, over 13,000 well...-
GIS Data for the Bedrock Geology of Jefferson County, Wisconsin [dataset 1]
2024
GIS Data: GeMS file geodatabase, geopackage, shapefiles, metadata
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Bedrock Elevation Raster for the Bedrock Geology of Jefferson County, Wisconsin [dataset 2]
2024
GIS Data: File geodatabase, metadata
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Geochemical Data for the Bedrock Geology of Jefferson County, Wisconsin [dataset 3]
2024
Data: Excel spreadsheet
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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 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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Inventory and Analysis of Flowing Artesian Wells in Bayfield County, Wisconsin
This report presents a county-wide inventory of flowing artesian wells in Bayfield County. Flowing artesian wells are a remarkable resource of high-quality water that both community members and tourists value. This report provides baseline water quality data that are a valuable resource for future assessments. Data collection occurred in 2022. Includes... -
Geologic Carbon Sequestration: Assessment of Mid-Continent Rift Core Porosities and Permeabilities in Wisconsin
This report presents results from a study investigating the potential for carbon dioxide sequestration in the ancient Keweenawan sedimentary formations in northern Wisconsin. Bedrock drill core from the Copper Harbor and Nonesuch formations were examined for their properties to store carbon dioxide (Copper Harbor) and seal that carbon dioxide (Nonesuch).... -
Geologic Map of the Dells of the Wisconsin River State Natural Area
The geologic map of the Dells of the Wisconsin River State Natural Area provides a detailed look at the bedrock geology present at one of Wisconsin's most cherished natural sites. The map and accompanying report present the Paleozoic bedrock stratigraphy of the visible formations, as well as an interpretation of their depositional environment. This map...-
Geologic Map of the Dells of the Wisconsin River State Natural Area
2023
Map: 30 x 36 in, scale 1:12,000
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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 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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Quaternary Geology of Waupaca County, Wisconsin
The Quaternary geologic map of Waupaca County, Wisconsin, provides details about the surficial sediment and landscapes that were formed underneath and adjacent to the Laurentide Ice Sheet during the late Wisconsin Glaciation (ca. 20,000 years before present). These landscapes include lowlands underlain by glacial and postglacial lake sediment, uplands...-
Geologic Log Data for Quaternary Geology of Waupaca County, Wisconsin [dataset 1]
2023
Data: Excel spreadsheet
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GIS Data for Quaternary Geology of Waupaca County, Wisconsin [dataset 2]
2023
GIS Data: GeMS file geodatabase, shapefiles, geopackage, metadata
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The Driftless Area: The extent of unglaciated and similar terrains in Wisconsin, Illinois, Iowa, and Minnesota
The Driftless Area of southwestern Wisconsin and northwestern Illinois got its name from the lack of glacial sediment ("drift") covering the landscape. The surficial geology and topography of the Driftless Area are thus distinct from the surrounding region where multiple phases of glaciation left their mark. This pamphlet, a collaborative effort between...-
GIS data for the outline of the Driftless Area and similar terrains in Wisconsin, Illinois, Iowa, and Minnesota
2023
GIS Data: shapefile, metadata
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Page-sized and web-version maps of the Driftless Area and similar terrains in Wisconsin, Illinois, Iowa, and Minnesota
2023
Map: 1 p. (8.5 in x 11 in)
Publications Catalog
Wisconsin Geological and Natural History Survey
