The Spout is a stretch of rapids in Montgomery County, Maryland, in the Northern Piedmont region. It lies about 2.1 miles east of Great Falls and roughly 5.3 miles east of Reston as the crow flies.
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.
Montgomery County holds 5 recorded rapids, and several are close by. Great Falls, is under a mile away. Calico Rapids, is about 2.6 miles away. Calico Falls, is about 2.7 miles away.
The Spout is located at 38.9956° N, 77.2494° W. The listing is based on the USGS Geographic Names Information System, 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 rapid yet.