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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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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 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)
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Central Sands nitrate and neonicotinoids database
The Central Sands nitrate and neonicotinoid database consists of over 100,000 measurements of nitrate and neonicotinoid concentrations in groundwater from wells across Adams, Juneau, Marquette, Portage, Waushara, and Wood counties collected between 1953 and 2021. These counties comprise the Central Sands Groundwater County Collaborative (GSGCC), which... -
Elevation contours of the Precambrian surface of south-central Wisconsin
Elevation contour data and an accompanying report provide an updated interpretation of the elevation of the top of Precambrian bedrock in south-central Wisconsin. The elevation surface was developed from geologic and geophysical data, and provides new detail on the entrenched bedrock valleys that were incised into the north and south ranges of the Baraboo...-
Elevation contours of the Precambrian surface of south-central Wisconsin [dataset 1]
2022
GIS Data: File geodatabase, metadata
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Geologic map of the Bloomington and Brodtville 7.5-minute quadrangles, Grant County, Wisconsin
The geologic map of the Bloomington and Brodtville quadrangles includes 1:24,000 scale mapping of both surficial and bedrock geology. There is little structural folding or faulting in this portion of the Driftless Area. Thus, it is ideal for studying the hydrostratigraphic framework of the mapped units. The accompanying report presents stratigraphic...-
Geologic map of the Bloomington and Brodtville 7.5-minute quadrangles, Grant County, Wisconsin
2022
Map: 41 in x 35 in, scale 1:24,000
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GIS data for the geologic map of the Bloomington and Brodtville 7.5-minute quadrangles, Grant County, Wisconsin [dataset 1]
2022
GIS Data: File geodatabase
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Quaternary Geology of Jefferson County, Wisconsin
The Quaternary geologic map of Jefferson County, Wisconsin, provides details about the surficial sediment and landscapes that were formed largely in the footprint of the Laurentide Ice Sheet's southern Green Bay Lobe during the late Wisconsin Glaciation (ca. 20,000 years before present). These landscapes include lowlands underlain by glacial and...-
GIS Data for Quaternary Geology of Jefferson County, Wisconsin [dataset 1]
2022
GIS Data: GeMS file geodatabase, shapefiles, metadata
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Quaternary Geology of Jefferson County, Wisconsin [plate 1]
2022
Map: 34.5 in x 18 in, scale 1:100,000
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Geologic map of the Castle Rock and Long Hollow 7.5-minute quadrangles, Grant County, Wisconsin
The geologic map of the Castle Rock and Long Hollow quadrangles includes 1:24,000 scale mapping of both surficial and bedrock geology. The accompanying report presents new observations about bedrock folds and fracture sets in this portion of the Driftless Area that lies just north of the main Upper Mississippi Valley zinc-lead mineral district. The...-
Geologic map of the Castle Rock and Long Hollow 7.5-minute quadrangles, Grant County, Wisconsin (revised 2022)
2022
Map: 48 in x 36 in, scale 1:24,000
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GIS data for the geologic map of the Castle Rock and Long Hollow 7.5-minute quadrangles, Grant County, Wisconsin [dataset 1]
2022
GIS Data: File geodatabase
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A Groundwater-Flow Model and Effective Nitrate Calculator for Waupaca, Wisconsin
The City of Waupaca, Wisconsin, uses groundwater pumped from a network of seven high-capacity wells as its municipal water supply. Recent increases in the concentration of nitrate in the municipal water supply raised questions about the source of this contamination and whether it might eventually exceed standards for drinking water. This study combines...-
Geodatabase of Study Data from Waupaca, Wisconsin [dataset 1]
2022
GIS Data: Geodatabase (.gdb file format)
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Groundwater Flow Modeling Files from Waupaca, Wisconsin [dataset 2]
2022
Data: Groundwater-flow model files
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Nitrate Calculators for Municipal Wells in Waupaca, Wisconsin [dataset 3]
2022
Data: Spreadsheets (.xlsx file format)
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Quaternary Geology of Fond du Lac County, Wisconsin
The Quaternary geology of Fond du Lac County consists of glacial deposits and landforms dating to the last part of the Wisconsin Glaciation (ca. 20,000 to 12,000 yr BP) and nonglacial deposits and landforms of Holocene age (11,700 yr BP to present). Glacial till and meltwater sediment were deposited by the Green Bay and Lake Michigan Lobes of the...-
GIS Data for the Quaternary Geology of Fond du Lac County, Wisconsin [dataset 2]
2021
GIS Data: GeMS file geodatabase, shapefiles, text files, and metadata
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Quaternary Geology of Fond du Lac County, Wisconsin [plate 1]
2021
Map: 32 in x 20.25 in, scale 1:100,000
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Quaternary Geology of Columbia, Green Lake, and Marquette Counties, Wisconsin
Columbia, Green Lake, and Marquette Counties were glaciated during the last ice age, and large areas were inundated with water from proglacial lakes and large meltwater rivers that occupied the valleys of the existing Wisconsin and Fox Rivers. These processes resulted in rolling upland hills, including drumlins punctuated by low-lying areas dominated by...-
GIS Data for the Quaternary Geology of Columbia, Green Lake, and Marquette Counties, Wisconsin [dataset 1]
2021
GIS Data: GeMS file geodatabase, shapefiles, GeoPackage, and metadata
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Quaternary Geology of Columbia, Green Lake, and Marquette Counties, Wisconsin [plate 1]
2021
Map: 35 in x 34 in, scale 1:100,000
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Potential Effects of Climate Change on Stream Temperature in the Marengo River Headwaters
Cold-water trout habitat in Wisconsin is projected to substantially decrease as a result of climate change. The extent of habitat loss depends, in part, on groundwater discharge to streams, which can provide cool-water refuges for trout. Survey hydrogeologists used field measurements and models of groundwater flow and stream temperature to evaluate how...-
GFLOW Groundwater Flow Model of the Marengo River Headwaters [dataset 1]
2021
Data: Groundwater flow model
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Geodatabase - Three Baseflow Scenarios for the Marengo River Headwaters [dataset 2]
2021
GIS Data: File geodatabase
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Measurements of Water Chemistry, Streamflow, and Stream Temperature from the Marengo River Headwaters [dataset 3]
2021
Data: Data (spreadsheets)
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Simulated Baseflow of the Marengo River Headwaters with 21% Increase in Recharge [plate 2]
2021
Map: 11 in x 17 in
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Simulated Baseflow of the Marengo River Headwaters with 12% Decrease in Recharge [plate 3]
2021
Map: 11 in x 17 in
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Bedrock Geology of Dodge County, Wisconsin
Dodge County lies in southeast Wisconsin, an area almost entirely covered by glacial deposits. This map interprets the distribution of the buried bedrock units across the county. Geologist Esther Stewart’s refinement of the bedrock elevation contours may help land-use planners identify areas most susceptible to groundwater contamination from applications...-
Supporting Data for the Bedrock Geology of Dodge County, Wisconsin
2021
Data: Tabular data files (Excel)
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GIS Data for the Bedrock Geology of Dodge County, Wisconsin [dataset 2]
2021
GIS Data: GeMS file geodatabase, shapefiles, GeoPackage, and 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: Scale 1:24,000, 40 in x 37 in
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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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