Boone and Winnebago Counties
This page contains links to all downloadable maps available for the County in its entirety. Additional maps that cover smaller areas within the County may be available through the By Scale—Quadrangle link or through specific By Theme links.
Bedrock Geology
Click to view or right-click to download
Author: Christopher S. McGarry
Description: 1:100,000 Boone and Winnebago Counties area map; 33" × 36" single map sheet; includes map, legend and inset map
Year: 2000
Series: OFS 2000-3 Boone Winnebago-BG
File size: 0.8 mb PDF
Paper: $7.00
Bedrock Topography
Click to view or right-click to download
Author: Christopher S. McGarry
Description: 1:100,000 Boone and Winnebago Counties area map; 33" × 26" single map sheet; includes map, legend and inset map
Year: 2000
Series: OFS 2000-2 Boone Winnebago-BT
File size: 0.8 mb PDF
Paper: $7.00
Ordering information for Illinois State Geological Survey Publications.
Updated 05/27/2011 SLD