Guide to the Geology of Cave-In-Rock Area, Hardin County, Illinois
State of Illinois Rod R. Blagojevich, Governor Illinois Department of Natural Resources Illinois State Geological Survey Guide to the Geology of Cave-In-Rock Area, Hardin County, Illinois Wayne T. Frankie and Russell J. Jacobson Field Trip Guidebook 2006B September 23, 2006 October 21, 2006 Equal opportunity to participate in programs of the Illinois Department of Natural Resources (IDNR) and those funded by the U.S. Fish and Wildlife Service and other agencies is available to all individuals regard- less of race, sex, national origin, disability, age, religion, or other non-merit factors. If you believe you have been discriminated against, contact the funding source’s civil rights office and/or the Equal Employment Opportunity Officer, IDNR, One Natural Resources Way, Springfield, Illinois 62702-1271; 217-785-0067; TTY 217-782-9175. This information may be provided in an alternative format if required. Contact the IDNR Clearinghouse at 217-782-7498 for assistance. Cover photo: Cave-In-Rock, Cave-In-Rock State Park, Hardin County, view from the Ohio River. (Photo- graph by W. T. Frankie.) Geological Science Field Trips The Geoscience Education and Outreach Unit of the Illinois State Geological Survey (ISGS) conducts four free tours each year to acquaint the public with the rocks, mineral resources, and landscapes of various regions of the state and the geological processes that have led to their origin. Each trip is an all-day excursion through one or more Illinois counties. Frequent stops are made to explore interesting phenomena, explain the processes that shape our environment, discuss principles of earth science, and collect rocks and fossils.
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