Bedrock Geology of Illinois from the
Illinois State Geological Survey.
Learn about the
Department of Geology at Western Illinois University.
This guide contains links to information resources related to Hydrology, including indexes & databases that can be used to find publications, reference works, geospatial data, style guides, and pages linking to specific types of resources on hydrology. If you have any questions or comments, or suggestions for additional resources, please do not hesitate to contact me.