3D view of surficial geology and subsurface cross section within Boone County, IL

By National Cooperative Geologic Mapping Program February 3, 2026

Screen clipped image showing the surficial geology of Boone County above and a subsurface diagram below using different color

Detailed Description

This screen clipped image was generated with the Illinois State Geological Survey's 3D viewer. This map shows the surficial geology of Boon County, Illinois above a generated cross section along the red diagonal indicator line.

Sources/Usage

Public Domain.

This screenshot image has been used with the permission of the Illinois State Geological Survey.