Surficial geology of Columbia Quadrangle, Monroe and St. Clair Counties, Illinois

Map (two sheets) shows the surficial geology of the Columbia Quadrangle, Monroe and St. Clair Counties. Material resources, including sand and gravel and groundwater, environmental hazards, including karst, mass wasting, and soil erosion, are discussed.

Information

Attachments

Loading...
Current image, full-size
Current image, reduced-size
Other download options: