Structural Measurement Atlas
Atlas / States / Wisconsin

Wisconsin strike and dip data

8,802 structural measurements in Wisconsin, digitized from 47 published geologic maps across 5 sources. Every row carries its azimuth, inclination, measurement type, location confidence and the citation of the map it came from.

Open Wisconsin on the map

What kinds of measurement

The Atlas separates planar structures, recorded as a strike and dip, from linear ones, recorded as a trend and plunge. This is what Wisconsin holds:

Measurement typeGeometryMeasurementsShare
Other Planar — strike and dip 5,86267%
Joint Planar — strike and dip 1,36616%
Bedding Planar — strike and dip 86210%
Cleavage Planar — strike and dip 2653%
Foliation Planar — strike and dip 2413%
Lineation (mineral, stretching) Linear — trend and plunge 1992%
Vein / dike Planar — strike and dip 6<1%
Fold hinge / axis Linear — trend and plunge 1<1%

Where the data comes from

Each source is a survey, agency or program whose published mapping was harvested and reconciled into one schema. Rows are published only where the source's terms permit redistribution.

SourceMeasurementsShare
NGMDB legacy quads 5,76365%
Wisconsin WGNHS 2,85932%
USGS NGMDB GeMS 1402%
NPS GRI parks 34<1%
USGS data releases · MRDS 6<1%

Most-measured published maps

The individual quadrangles and data releases contributing the most measurements in Wisconsin. The full citation for every map behind a selection ships in the sources.csv of any export.

Published mapYearScaleMeasurements
This_study— 7.5-minute quads at 1:24,000; county maps 1:100,000; state sheets 1:250,000-1:1,000,0001,266
Clayton, Lee, 2001, Pleistocene Geology of Waukesha County, Wisconsin: Wisconsin Geological and Natural History Survey Bulletin 99, 33p., 2pl., scale 1:100,000.2001 1:100,0001,143
Stewart_et_al_Baraboo_Compilation_20252025 7.5-minute quads at 1:24,000; county maps 1:100,000; state sheets 1:250,000-1:1,000,000559
Mark D. Johnson., 1998, Pleistocene Geology of Polk County, Wisconsin: Wisconsin Geological and Natural History Survey Bulletin 92, Scale 1:100,000.2000 1:100,000548
This report, Plate 1: Geologic Map of Lincoln County, Wisconsin. Ham, Nelson; Attig, John. 1997. B093-plate01. Wisconsin Geological and Natural History Survey. Plate 1. Scale 1:100,000.1997 1:100,000538
Quaternary geologic map of the Lake Superior 4 degrees x 6 degrees quadrangle, United States and Canada1984 1:1,000,000503
Digital bedrock geologic map of the Ashland and northern part of the Ironwood 30' X 60' quadrangles, Wisconsin, and Michigan1999 1:100,000498
Quaternary geologic map of the Chicago 4 degrees x 6 degrees quadrangle, United States1983 1:1,000,000480
This report, Plate 1: Pleistocene Geologic Map of Chippewa County, Wisconsin. Syverson, Kent. 2007. B103-plate01. Wisconsin Geological and Natural History Survey. Plate 1. Scale 1:100,000.2007 1:100,000438
This report, Plate 1: Pleistocene Geologic Map of Dane County, Wisconsin. Clayton, Lee; Attig, John. 1997. B095-plate01. Wisconsin Geological and Natural History Survey. Plate 1. Scale 1: 100,000.1997 1:100,000355
Quaternary geologic map of the Minneapolis 4 degrees x 6 degrees quadrangle, United States1983 1:1,000,000332
NE_WI_Region_Bedrock_Greenberg_19841984 7.5-minute quads at 1:24,000; county maps 1:100,000; state sheets 1:250,000-1:1,000,000258
Marathon_Bedrock_LaBerge_Myers_19831983 7.5-minute quads at 1:24,000; county maps 1:100,000; state sheets 1:250,000-1:1,000,000239
This study. Attig, J.W., and Rawling, J.E., III, 2020, Quaternary geology of Oneida County, Wisconsin: Wisconsin Geological and Natural History Survey Map 507, scale 1:100,000.2020 1:100,000236
Pleistocene Geology of the Superior Region, Wisconsin1985 1:250,000206

Most-measured map units

Where a source recorded the geologic unit a measurement was taken on, the Atlas keeps it. These are the units carrying the most measurements in Wisconsin.

Map unitAgeLithologyMeasurements
su ——1,747
sc ——859
ssp ——468
Og ——462
Opc ——260
Oa ——237
Op ——185
YXbuc ——180
YXblq ——155
Od ——147
Pvs ——121
Cj ——96

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