Service in 1992. From 1992 until somewhat recently cave tours were not being held. Gap Cave had been vandalized, broken light bulbs were around every corner, graffiti was on nearly every wall, and the stairs and bridges were very unstable. In the early 1990s a concept plan was drawn up to restore the Cumberland Gap, including Gap Cave. The restoration was completed in the late 1990s to the early 2000s; the cave is nearly back to its original condition and tours now run off lantern light instead of electricity. As of Oct.2015, 18.5 miles of passage has been mapped by CRF. References Notes Bibliography Caves of Virginia Landforms of Lee County, Virginia Show caves in the United States