Illinois Geologic Quadrangle Maps

Surficial Geology of Alton Quadrangle, Madison County, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, 32" × 88", 1:24,000, report. Author: Grimley, D.A., 1999

Bedrock Geology of Ames Quadrangle, Monroe and Randolph Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, 43" × 33", 1:24.000. Author: Devera, J.A., 2002

Surficial Geology of Ames Quadrangle, Monroe and Randolph Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, 2 sheets, 36" × 58", 1:24,000. Authors: Grimley, D.A., and Shofner, G.A., 2008

1939 Historical Aerial Photography of Antioch Quadrangle, Lake County, Illinois and Kenosha County, Wisconsin: Illinois State Geological Survey, Illinois Preliminary Geologic Map, 34" × 28", 1:24,000. Authors: Luman, D.E., Lund, D.M., and Luman, B.J., 2005

Three-Dimensional Model: Surficial Geology of Antioch Quadrangle, Lake County, Illinois and Kenosha County, Wisconsin: Illinois State Geological Survey, Illinois Preliminary Geologic Map Series, 34" × 28", 1:24,000, report, 6 p. Author: Hansel, A.K., 2005

Topography of Antioch Quadrangle, Lake County, Illinois and Kenosha County, Wisconsin: Illinois State Geological Survey, Illinois Preliminary Geologic Map, 34" × 28", 1:24,000. Authors: Dixon-Warren, A.B., and O’Malley, S.M., 2004

Digital Orthophotography of Antioch Quadrangle, Lake County, Illinois and Kenosha County, Wisconsin: Illinois State Geological Survey, Illinois Preliminary Geologic Map, 34" × 28", 1:24,000. Author: Luman, D.E., 2005

Drift Thickness of Antioch Quadrangle, Lake County, Illinois and Kenosha County, Wisconsin: Illinois State Geological Survey, Illinois Preliminary Geologic Map, 34" × 28", 1:24,000. Authors: Dixon-Warren, A.B., and O’Malley, S.M., 2004

Surficial geology of Antioch Quadrangle, Lake County, Illinois and Kenosha County, Wisconsin: Illinois State Geological Survey, Illinois Preliminary Geologic Map Series, IPGM Antioch-SG, 1:24,000. Authors: Stumpf, A.J., and Barnhardt, M.L., 2005

Well Locations of Antioch Quadrangle, Lake County, Illinois and Kenosha County, Wisconsin: Illinois State Geological Survey, Illinois Preliminary Geologic Map, 34" × 28", 1:24,000, report, 7 p. Authors: Stiff, B.J., and Barnhardt, M.L., 2005

Surficial Geology of the Arlington Heights Quadrangle, Chicago Areal Geologic Maps, Map 3—Arlington Heights, in Geology of the Chicago Region: Illinois State Geological Survey, Bulletin 65, 1:24.000. Bulletin is OUT OF PRINT; maps still available. Author: Bretz, J.H., 1939

Topographic Map of the Bedrock Surface, Aurora North Quadrangle, Kane and DuPage Counties, Illinois, Illinois Geological Quadrangle Map, 32" × 40", 1:24,000. Author: Curry, B.B., 2001

Surficial Geology Map, Aurora North Quadrangle, Kane and DuPage Counties, Illinois: Illinois State Geological Survey, Illinois Geological Quadrangle Map, 32" × 50", 1:24,000. Author: Curry, B.B., 2001

Surficial Geology of Aurora South Quadrangle, DuPage, Kane, Kendall, and Will Counties, Illinois: Illinois State Geological Survey, USGS-STATEMAP contract report, 2 sheets, 36" × 30", 1:24,000. Author: Curry, B.B., 2009

Bedrock Geology of Ava Quadrangle, Jackson and Perry Counties, Illinois: Illinois State Geological Survey, Illinois Preliminary Geologic Map, IPGM Ava-BG, 1:24,000. Author: Denny, F.B., 2005

Bedrock Geology of Baldwin Quadrangle, Randolph and St. Clair Counties, Illinois: Illinois State Geological Survey, USGS-STATEMAP contract report, 2 sheets, 34" x 28", 1:24,000. Authors: Breeden, J.R., Devera, J.A., Nelson, W.J., and Denny, F.B., 2018

Geology of Bandana Quadrangle, Pulaski and Massac Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, 36" × 30", 1:24,000, report, 8 p. Author: Nelson, W.J., 2007

Surficial Geology of Barrington Quadrangle, Lake, McHenry, Cook, and Kane Counties, Illinois: Illinois State Geological Survey, USGS-STATEMAP contract report, 2 sheets, 36" × 30", 1:24,000. Authors: Thomason, J.F., and Barnhardt, M.L., 2007

Bedrock Topography and Drift Thickness Maps of the Northern Beecher West and Southern Steger 7.5-minute Quadrangles: Illinois State Geological Survey, Illinois Geological Quadrangle Map, 32" × 47", 1:24,000. Authors: Grimley. D.A., Curry, B.B., and Kulczycki, D.M., 2001

Data Point Location Map: Selected Water Wells, Test Borings, and Electrical Earth Resistivity Transects, Northern Beecher West and Southern Steger 7.5-minute Quadrangles, Will County, Illinois: Illinois State Geological Survey, Illinois Geological Quadrangle Map, 32" × 27", 1:24,000. Authors: Curry, B.B., Grimley, D.A., and Kulczycki, D.M., 2001

Surficial Geology Map: Northern Beecher West and Southern Steger 7.5-minute Quadrangles, Will County, Illinois: Illinois State Geological Survey, Illinois Geological Quadrangle Map, 32" × 64", 1:24,000. Authors: Curry, B.B., and Grimley, D.A., 2001

Surficial Geology of the Berwyn Quadrangle, Chicago Areal Geologic Maps, Map 10—Berwyn, in Geology of the Chicago Region: Illinois State Geological Survey, Bulletin 65, 1:24.000. Bulletin is OUT OF PRINT; maps still available. Author: Bretz, J.H., 1939

Bedrock Geology of Bethalto Quadrangle, Madison and Macoupin Counties, Illinois: Illinois State Geological Survey, Illinois Preliminary Geologic Map, 2 sheets, 34" × 56", 1:24,000. Author: Devera, J.A., 2004

Surficial Geology of Bethalto Quadrangle, Madison and Macoupin Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, 2 sheets, 36" × 58", 1:24,000. Author: Grimley, D.A., 2005

Geology of the Bloomfield Quadrangle, Johnson County, Illinois: Illinois State Geological Survey, 39" × 32", 1:24,000. Author: Nelson, W.J., 1995

Surficial Geology of the Blue Island Quadrangle, Chicago Areal Geologic Maps, Map 15—Blue Island, in Geology of the Chicago Region: Illinois State Geological Survey, Bulletin 65, 1:24.000. Bulletin is OUT OF PRINT; maps still available. Author: Bretz, J.H., 1939

Surficial geology of Blue Island Quadrangle, Cook County, Illinois: Illinois State Geological Survey, USGS-STATEMAP contract report, STATEMAP Blue Island-SG, 2 sheets, 1:24,000. Phillips, A.C., B.B. Curry, and A. Sanchez, 2021,. Print on Demand

Surficial Geology of Part of the Brisbane Quadrangle; Surficial Geology of Part of the Frankfort Quadrangle, Chicago Areal Geologic Maps, Map 21—Brisbane; Map 22—Frankfort, in Geology of the Chicago Region: Illinois State Geological Survey, Bulletin 65, 1:24,000. Bulletin is OUT OF PRINT; maps still available. Author: Bretz, J.H., 1939

Bedrock Geology of Brownfield Quadrangle, Massac and Pope Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, 2 sheets, 36" × 30", 1:24,000, report, 3 p. Authors: Nelson, W.J., and Denny, F.B., 2008

Bedrock Geology of Brussels Quadrangle, Calhoun and Jersey Counties, Illinois: Illinois State Geological Survey, USGS-STATEMAP contract report, 2 sheets, 36" × 30", 1:24,000, report, 6 p. Authors: Seid, M.J., and Devera, J.A., 2008

Surficial Geology of the Calumet City Quadrangle, Chicago Areal Geologic Maps, Map 20—Calumet City, in Geology of the Chicago Region: Illinois State Geological Survey, Bulletin 65, 1:24,000. Bulletin is OUT OF PRINT; maps still available. Author: Bretz, J.H., 1939

Surficial geology of Calumet City Quadrangle, Cook County, Illinois and Lake County, Indiana: Illinois State Geological Survey, USGS-STATEMAP contract report, STATEMAP Calumet City-SG, 2 sheets, 1:24,000. Curry, B.B., A.C. Phillips, W.R. Lenihan, and E.N.G. Huggett, 2021. Print on Demand

Surficial Geology of the Calumet Lake Quadrangle, Chicago Areal Geologic Maps, Map 16—Calumet Lake, in Geology of the Chicago Region: Illinois State Geological Survey, Bulletin 65, 1:24,000. Bulletin is OUT OF PRINT; maps still available. Author: Bretz, J.H., 1939

Surficial Geology of Carbondale Quadrangle, Jackson and Williamson Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, 30" × 35", 1:24,000. Author: Nelson, W.J., 2013

Bedrock Geology of Carrier Mills Quadrangle, Williamson and Saline Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, 2 sheets, 36" × 30", 1:24,000. Author: Nelson, W.J., 2007

Bedrock Geology of Chana Quadrangle, includes two 34" x 28" map sheets; sheet 1 contains map and legends; sheet 2 includes descriptive stratigraphic column, 2 cross sections, 2 figures, and descriptive text. USGS-STATEMAP contract report, 2 sheets, 1:24,000. Authors: Delpomdor, F., Wirth, H., 2018.

Surficial Geology of the Chicago Loop Quadrangle, Chicago Areal Geologic Maps, Map 8—Chicago Loop, in Geology of the Chicago Region: Illinois State Geological Survey, Bulletin 65, 1:24,000. Bulletin is OUT OF PRINT; maps still available. Author: Bretz, J.H., 1939

Bedrock geology of Coal Valley Quadrangle, Rock Island and Henry Counties, Illinois: Illinois State Geological Survey, USGS-STATEMAP contract report, STATEMAP Coal Valley-BG, 2 sheets, 1:24,000, report, 29 p. Delpomdor, F.R.A., 2021. Print on Demand

Geology of the Cobden Quadrangle, Union and Johnson Counties, Illinois: Illinois State Geological Survey, Illinois Geological Quadrangle Map, 38" × 33", 1:24,000. Authors: Devera, J.A., and Nelson, W.J., 1995

Bedrock Geology of Crab Orchard Quadrangle, Williamson County, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, 2 sheets, 36" × 30", 1:24,000. Author: Nelson, W.J., 2007

Bedrock Geology of Crab Orchard Lake Quadrangle, Williamson County, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, 2 sheets, 36" × 30", 1:24,000. Author: Nelson, W.J., 2007

Geology of the Creal Springs Quadrangle, Williamson and Johnson Counties, Illinois: Illinois State Geological Survey, Illinois Geological Quadrangle Map, 32" × 38", 1:24,000. Authors: Trask, C.B., and Jacobson, R.J., 1990

Quaternary Geology of the Creal Springs 7.5-minute Quadrangle, Williamson and Johnson Counties, Illinois: Illinois State Geological Survey, Open File Series, 30" × 30", 1:24,000. Author: Riggs, M.H., Lannon, M.S., Esling, S.P., Follmer, L.R., 1992

Surficial Geology of Crossville Quadrangle, White County, Illinois: Illinois State Geological Survey, STATEMAP Crossville-SG, 2 sheets, 1:24,000. Authors: Phillips, A.C., K. Mandera, T.H. Larson, and R. Balikian, 2020.

Bedrock Topography of Crystal Lake Quadrangle, McHenry and Kane Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, 34" × 28", 1:24,000. Author: Curry, B.B., 2005

Data Point Locations of Crystal Lake Quadrangle, McHenry and Kane Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, 34" × 28", 1:24,000. Author: Curry, B.B., 2005

Drift Thickness of Crystal Lake Quadrangle, McHenry and Kane Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, 34" × 28", 1:24,000. Author: Curry, B.B., 2005

Surficial Geology of Crystal Lake Quadrangle, McHenry and Kane Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, 3 sheets, 34" × 28", 1:24,000. Author: Curry, B.B., 2005

Geology of Cypress Quadrangle, Union, Johnson, and Pulaski Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, 2 sheets, 36" × 30", 1:24,000. Authors: Devera, J.A., and Nelson, W.J., 2009

Bedrock geology of Davenport East and Milan Quadrangles, Rock Island County, Illinois: Illinois State Geological Survey, STATEMAP Davenport East-Milan-BG, 2 sheets, 1:24,000. Authors: Devera, J.A., and J. Krienert, 2020

Bedrock Geology of Daysville Quadrangle

Bedrock Geology of Daysville Quadrangle, Ogle and Lee Counties, Illinois: Illinois State Geological Survey, USGS-STATEMAP contract report, 2 sheets; 36" × 30", 1:24,000. Author: Kolata, D.R., 2014

Bedrock Geology of Dekoven Quadrangle, Hardin County, Illinois, and Union and Crittenden Counties: Illinois State Geological Survey, USGS-STATEMAP contract report, 2 sheets, 36" × 30", 1:24,000, report, 8 p. Authors: Seid, M.J., Denny, F.B., and Nelson, W.J., 2013

Bedrock Geology of De Soto Quadrangle: Illinois State Geological Survey, USGS-STATEMAP contract report, 2 sheets, 34" x 28", 1:24,000. . Authors: Nelson, W.J., 2018

Quaternary Geology of the Eddyville 7.5-minute Quadrangle, Illinois: Illinois State Geological Survey, Open File Series, 30" × 30". Authors: Henderson, E.D., Lannon, M.S., Esling, S.P., Riggs, M.H., Follmer, L.R., 1992

Surficial Geology of the Elmhurst Quadrangle, Chicago Areal Geologic Maps, Map 6—Elmhurst, in Geology of the Chicago Region: Illinois State Geological Survey, Bulletin 65, 1:24,000. Bulletin is OUT OF PRINT; maps still available. Author: Bretz, J.H., 1939

Surficial Geology of the Englewood Quadrangle, Chicago Areal Geologic Maps, Map 11—Englewood, in Geology of the Chicago Region: Illinois State Geological Survey, Bulletin 65, 1:24,000. Bulletin is OUT OF PRINT; maps still available. Author: Bretz, J.H., 1939

Geology of the Equality Quadrangle, Gallatin and Saline Counties, Illinois: Illinois State Geological Survey, Illinois Geological Quadrangle Map, 36" × 34", 1:24,000. Authors: Nelson, W.J. and Lumm, D.K. 1986  Print on Demand

Bedrock Geology of Evansville Quadrangle, Randolph County, Illinois: Illinois State Geological Survey, USGS-STATEMAP contract report, 2 sheets, 36" × 30 ", 1:24,000. Author: Devera, J.A., 2012

Surficial Geology of the Evanston Quadrangle, Chicago Areal Geologic Maps, Map 5—Evanston, in Geology of the Chicago Region: Illinois State Geological Survey, Bulletin 65, 1:24,000. Bulletin is OUT OF PRINT; maps still available. Author: Bretz, J.H., 1939

Surficial Geology of Fox Lake Quadrangle, McHenry and Lake Counties, Illinois, and Kenosha County, Wisconsin: Illinois State Geological Survey, USGS-Central Great Lakes Geologic Mapping Coalition contract report, 2 sheets, 36" × 30", 1:24,000, report, 5 p. Authors: Thomason, J.F., and M.L. Barnhardt, 2008

Surficial Geology of Frankfort Quadrangle, Will and Cook Counties, Illinois: Illinois State Geological Survey, USGS-STATEMAP contract report, 2 sheets, 36" x 30", report, 1:24,000, 3 p. Authors: Caron, O.J., and Phillips, A.C., 2015

Bedrock geology of Franklin Grove Quadrangle, Lee County, Illinois: Illinois State Geological Survey, STATEMAP Franklin Grove-BG, 2 sheets, 1:24,000, report, 24 p. Authors: Delpomdor, F., and J. Devera, 2020

Bedrock Geology of Harco Quadrangle, Saline, Williamson, and Franklin Counties, Illinois: Illinois State Geological Survey, USGS-STATEMAP contract report, 2 sheets, 36" × 30", 1:24,000, report, 5 p. Authors: Nelson, W.J., and F.B. Denny, 2015

Surficial geology of Harvey Quadrangle, Cook County, Illinois: Illinois State Geological Survey, STATEMAP Harvey-SG, 2 sheets, 1:24,000. Authors: B. Brandon Curry, A.C. Phillips, D.A. Grimley, and E.N.G. Huggett, 2020.

Bedrock Geology of Herod Quadrangle, Pope, Saline, and Hardin Counties, Illinois: Illinois State Geological Survey, USGS-STATEMAP contract report, 2 sheets, 36" × 30", 1:24,000, report, 4 p. Authors: Denny, F.B., W.J. Nelson, and J.A. Devera, 2008

Surficial Geology of Pleasant Mound Quadrangle, includes two 34" x 28" map sheets; sheet 1 contains map and legends; sheet 2 includes 4 cross sections and 4 figures, and descriptive text. A thirteen page report accompanies the map sheets. Illinois: Illinois State Geological Survey, USGS-STATEMAP contract report, 2 sheets, 1:24,000, report, 14 p. Authors: Grimley, D.A.Szocinski, P.Larson, T.H.Balikian, R., 2018.

Bedrock Topography of Pomona Quadrangle, Jackson County, Illinois: Illinois State Geological Survey, Illinois Preliminary Geologic Map, IPGM Pomona-BG, 1 sheets, 1:24,000. Authors: Seid, M.J., Nelson, W.J., and Devera, J.A., 2009

Surficial Geology of Rantoul Quadrangle

Stumpf, A.J., 2014, 1:24,000. Description: Three 36" x 30 " map sheets; sheet 1 contains map, 2 inset maps, and legends; sheet 2 includes 3 cross sections and legend; sheet 3 contains descriptive text with 6 figures.

Bedrock Geology of Repton Quadrangle

Seid, M.J., 2014, 1:24,000. Description: Two 36" x 30 " map sheets; sheet 1 contains map and legends; sheet 2 includes descriptive stratigraphic column and descriptive text.

Surficial Geology of Romeoville Quadrangle, Cook, DuPage, and Will Counties, Illinois: Illinois State Geological Survey, Caron, O.J., 2017,  USGS-STATEMAP contract report, 2 sheets, 1:24,000..

Surficial Geology of Sag Bridge Quadrangle

Curry, B.B., and A.R. Bruegger, 2015, Surficial Geology of Sag Bridge Quadrangle, Cook, DuPage, and Will Counties, Illinois: Illinois State Geological Survey, USGS-STATEMAP contract report, two 36" x 30 " map sheets; sheet 1 contains map and legends; sheet 2 includes 1 cross section and 1 figure.

Bedrock geology of Silvis Quadrangle, Rock Island County, Illinois:Illinois State Geological Survey, USGS-STATEMAP contract report, STATEMAP Silvis-BG, 2 sheets, 1:24,000.. Delpomdor, F.R.A., 2021. Print on Demand

Special Report 8  Geology of Starved Rock State Park and Surrounding Area, La Salle County, Illinois

Jason F. Thomason, 2020, one 24"×12" map sheet. Print on demand.

This map was created to provide visitors to Starved Rock State Park with a deeper understanding of the geology that contributes to the natural beauty of the park. Exposed rocks that protrude from the bluffs within the park and along the Illinois River reveal sediments that once accumulated millions of years ago on the floor of a shallow sea, along ocean beaches, and on deltas built by massive rivers discharging into the ocean. Then, only thousands of years ago during the most recent ice age, the canyons formed as glacial meltwaters flowed through the river valley and began to erode the landscape. At times, violent torrents of meltwater from nearby melting glaciers sent water rushing through the Illinois River valley, widening and deepening the canyons. This action of water on rock over thousands of years created the unique bluffs, canyons, waterfalls, and river valleys for which the park is famous, and these same geologic processes continue to shape the landscape today.

Surficial geology of Steger Quadrangle, Will and Cook Counties, Illinois: Illinois State Geological Survey, STATEMAP Steger-SG, 2 sheets, 1:24,000. Authors: Caron, O.J., B.B. Curry, and D.A. Grimley, 2020.

Grimley, D. A., and J. M. Gemperline, 2015, Surficial Geology of Stolletown Quadrangle, Bond and Clinton Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, IGQ Stolletown-SG, 2 sheets, 1:24,000, report, 11 p. Description: Two 36" x 30 " map sheets and one 11-page report; sheet 1 contains map and legends; sheet 2 includes 4 cross sections and 4 figures; report contains descriptive text and 3 figures.

Surficial Geology of Tinley Park Quadrangle, includes two 34" x 28" map sheets; sheet 1 contains map and legends; sheet 2 includes 2 cross sections, 3 figures, and descriptive text. Illinois State Geological Survey, USGS-STATEMAP contract report, 2 sheets, 1:24,000. Authors: Caron, O.J.Curry, B.B., 2018.

Description: Three 35" x 30 " map sheets; sheet 1 contains map, legends, and descriptive text; sheet 2 contains map, legends, and stratigraphic column; sheet 3 contains map and legends.

Huff, B.G., B. Seyler, R.J Jacobson, A.B. Lecouris, and P.N. Irwin, 2016
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Bedrock Geology of Walsh Quadrangle

Devera, J.A., 2013, 1:24,000. Description: Two 36" x 30 " map sheets and one 8-page report; sheet 1 contains map and legends; sheet 2 includes descriptive stratigraphic column and cross section; report contains descriptive text, 9 figures, and 3 plates.

Bedrock geology of Wedron Quadrangle, LaSalle County, Illinois: Illinois State Geological Survey, USGS-STATEMAP contract report, STATEMAP WedronBG, 2 sheets, 1:24,000, report, 17 p. Devera, J.A., and J.M. Krienert, 2021. Print on Demand