Quadrule Falls is a waterfall on Martins Fork in Harlan County, Kentucky, in the Central Appalachians region. It lies about 12.1 miles southwest of Harlan and roughly 48.8 miles west of Kingsport as the crow flies.
Its height has not been recorded in the source data.
The Central Appalachians are a high, rugged plateau of sandstone and shale with mixed oak, hemlock and northern hardwood forest and a cool, wet climate. Streams drop steeply through gorges and hollows over sandstone ledges.
Harlan County holds 2 recorded waterfalls, and several are close by. Sand Cave Falls, a horsetail waterfall, is about 2.2 miles away. White Branch Falls, a 40-foot horsetail waterfall, is about 3.1 miles away across the state line in Virginia. Fall Branch Falls, a 20-foot cascade waterfall, is about 17.5 miles away across the state line in Tennessee.
Quadrule Falls is located at 36.6881° N, 83.4252° W. The listing is based on the World Waterfall Database, one of the sources compiled by the U.S. Geological Survey in its inventory of waterfalls and rapids of the conterminous United States. The position was verified on aerial imagery. Details on trails, parking and access have not been documented for this waterfall yet.