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Humans have appreciated this unique area for thousands of years.
Archeological evidence found within the park dates to around 4,000 years ago.
Park facilities constructed of native timber and field stone by the Civilian Conservation Corps (CCC) in the 1930's are still standing today.
The trail starts at the old stone building across from the amphitheater by the entrance to the campground.Visitors are asked to stay out of the campground at this time to avoid interference with the project.(UPDATED May 30, 2018) The wildlife and plant communities are interwoven with the human history of Ledges.Ledges has a long history of being flooded by the nearby Des Moines River.The major flood water levels have been recorded on a "flood pole" located in the lower area of the park. The Oak Woods picnic shelter and nearby restroom, located in the eastern area of the park, are fully accessible.