The preserve, owned by the Boone County Fiscal Court, was originally acquired by The Nature Conservancy. It was dedicated as a state nature preserve to protect the unique glacial features and four forest community types that are present there. Initially, 46 acres of land in Boone County were dedicated on Nov. 5, 1987. An additional 29 acres were dedicated on May 16, 1990. The preserve, located along a tributary to Middle Creek, is named for the 20- to 40-foot conglomerate cliffs that outcrop on the valley slopes. The conglomerate is composed of gravel that was deposited as glacial outwash about 700,000 years ago.
- Features - glacial outwash cliffs, spring wildflower display
- Access - 2.4 mile trail over uneven terrain, moderate
- Facilities - none
- Parking - five cars; one bus
- Hazards - steep cliffs
- Activities - hiking, nature study, geological study, birding, etc.
- Directions - Boone County. From the junction of I-75 and KY 18 near Florence, follow KY 18 west for 10.8 miles, then left on Middle Creek Road for 1.5 miles to gravel parking area on left side of road.
As of September 21, 2016 the Boone County Fiscal Court has temporarily closed the Boone County Cliffs State Nature Preserve due to significant erosion problems and potential safety hazards. It took this action with the support of Kentucky State Nature Preserves Commission. Please read the press release for more information.