Dead Run Falls is a waterfall on Dead Run in Fairfax County, Virginia, in the Northern Piedmont region. It lies about 1 miles southwest of Cabin John and roughly 4.1 miles west of Bethesda as the crow flies.
Its height has not been recorded in the source data. By form it is a tiered waterfall, falling in several distinct steps one after another.
The Northern Piedmont is rolling upland of farmland, oak forest and suburbs from Pennsylvania to Virginia, with waterfalls at the fall line and on rocky creeks crossing diabase and gneiss.
Fairfax County holds 3 recorded waterfalls, and several are close by. Scotts Run Falls, a 12-foot segmented waterfall, is about 1.6 miles away. Difficult Run Falls, an 11-foot cascade waterfall, is about 3.6 miles away. Gulf Branch Falls, a 22-foot tiered waterfall, is about 4.3 miles away.
Dead Run Falls is located at 38.9661° N, 77.1734° 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 creek name is confirmed against the federal Geographic Names Information System. The exact position has not yet been verified on aerial imagery, so treat the map pin as approximate. Details on trails, parking and access have not been documented for this waterfall yet.