Windy Run Falls is a waterfall on Windy Run in Arlington County, Virginia, in the Northern Piedmont region, with a total height of about 30 feet. It lies about 1.3 miles northwest of Rosslyn and roughly 1.8 miles north of Arlington as the crow flies.
At 30 feet it is on the modest side for Virginia, where the typical waterfall with a recorded height stands around 69 feet; it ranks 38th of 53. The water comes down as a cascade, descending over a series of rock steps rather than in a single drop.
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.
There are 3 recorded waterfalls in Arlington County. Donaldson Run Falls, a 14-foot tiered waterfall, is about 1.2 miles away. Gulf Branch Falls, a 22-foot tiered waterfall, is about 1.7 miles away. Dead Run Falls, a tiered waterfall, is about 6 miles away.
Windy Run Falls is located at 38.9056° N, 77.0941° 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.