Recently Added Maps

Recently Added Maps for Download

Bedrock Geology of De Soto Quadrangle, map thumbnail, sheet 1
Two 34" x 28" map sheets; sheet 1 contains map and legends; sheet 2 includes descriptive stratigraphic column, 1 generalized diagram, 1 table, and descriptive text. Updated: October 30, 2019
Stolletown Quadrangle map image
Two 36" × 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. Updated: October 29, 2019
Bedrock geology of New Haven SW Quadrangle, map thumbnail, sheet 1
Two 35" x 30" map sheets; sheet 1 contains map and legends; sheet 2 includes descriptive stratigraphic column, unit descriptions, and 1 generalized cross section. A 7-page report includes discussion, 1 table and 4 figures. Updated: October 29, 2019
Surficial geology of Beaver Creek Quadrangle, map thumbnail, sheet 1
Two 35" x 30" map sheets; sheet 1 contains map and legends; sheet 2 includes 2 cross sections, and 5 figures, including bedrock surface topography and drift thickness maps. Updated: October 29, 2019
Bedrock geology of Otterville Quadrangle, map thumbnail, sheet 1
Two 35" x 30" map sheets, sheet 1 contains map, drift thickness inset, and legends; Sheet 2 includes stratigraphic column, unit descriptions, 1 cross section, 4 figures, and report. Updated: October 16, 2019
Bedrock geology of Wabash Island Quadrangle, map thumbnail, sheet 1
Two 35" x 30" map sheets; sheet 1 contains map and legends; sheet 2 includes descriptive stratigraphic column, unit descriptions, and 1 generalized cross section. A 5-page report includes discussion and 2 figures. Updated: October 16, 2019
Bedrock geology of Rochelle Quadrangle, map thumbnail, sheet 1
Two 35" x 30" map sheets; sheet 1 contains map and legends; sheet 2 includes 2 cross sections, stratigraphic column, and unit descriptions. A 5-page report includes discussion, references and 2 figures. Updated: October 16, 2019
Surficial geology of Palos Park Quadrangle,  map thumbnail, sheet 1
Two 35" x 30" map sheets; sheet 1 contains map, legends, and 1 figure; sheet 2 includes 2 cross sections and 3 figures, including bedrock surface topography map and sediment thickness map. A brief report is also included on the second map sheet. Updated: October 16, 2019
Surficial geology of Lawrenceville Quadrangle, map thumbnail, sheet 1
Two 35" x 30" map sheets; sheet 1 contains map and legends; sheet 2 includes 2 cross sections and 3 figures, including bedrock surface topography map, sediment thickness map, electrical resistivity profiles, and example cone penetrometer-hydraulic profiling (CPT-HPT) results. Updated: October 16, 2019
Bedrock Geology Map of Illinois Page 1
Title: Bedrock Geology Map of Illinois Compiled by: Dennis R. Kolata Updated: September 9, 2019