Sheltowee Trace, a trail system in the Daniel Boone National Forest that runs from Tennessee to northeastern Kentucky. This webpage created by Great Outdoors Recreation Pages.
Kentucky State Nature Preserves Commission. Numerous State Nature Preserves developed by this commission exist throughout the state. Many of these have hiking trails. This site describes each preserve and indicates trail length, etc.
Kentucky Chapter of The Nature Conservancy also lists and describes several of their preserves and indicates trail length, etc.
Pine Mountain Trail Conference provides information about the new trail along the crest of Pine Mountain in southeastern Kentucky.