Map PDF PDF of Bedrock Geologic Map, Waterloo Quadrangle, Monroe County, Illinois General Information: Description 32" x 42" single map sheet, contains map, legend, descriptive stratigraphic column, descriptive text, and cross section Publication Details: Publication Date 2000 Authors F. Brett Denny Map Details: Theme Bedrock Geology Quadrangles Waterloo Scale Category Quadrangle Scale 1:24,000 GIS Data Downloads: https://chf.isgs.illinois.edu/maps/quad/waterloo-bg-gems.zip
