The Seneca Creek Greenway Trail is a long trail that runs along Seneca Creek from the

Potomac River The Potomac River () drains the Mid-Atlantic United States, flowing from the Potomac Highlands into Chesapeake Bay. It is long,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map. Retrieved Augu ...

to Watkins Mill Road, with some parts maintained by the state of

Maryland Maryland ( ) is a state in the Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean to ...

and some parts maintained by Montgomery County, MD

State maintained section

The 16.5 mile state-maintained portion of the Seneca Creek Greenway Trail starts at the Potomac River near

Riley's Lock Riley's Lock (Lock 24) and lock house are part of the 184.5-mile (296.9 km) Chesapeake and Ohio Canal (a.k.a. C&O Canal) that operated in the United States along the Potomac River from the 1830s through 1923. They are located at towpat ...

. it goes by the ruins of the Seneca stonecutting mill and runs along Tschiffely Mill Road for about a mile. The trail then crosses River Road and goes a short distance on Berryville Road, where the off-road portion of the trail begins. The trail continues past Darnestown Road, Blackrock Mill and Clopper Lake until it reaches

Maryland Route 355 Maryland Route 355 (MD 355) is a north–south road in western central Maryland in the United States. The southern terminus of the route, Wisconsin Avenue, is located in the Bethesda CDP, at the Washington, D.C. border. It co ...

County maintained section

The state-run portion of the trail ends at Maryland Route 355. The county portion is a 7.8-mile natural-surface trail that continues to the north. Follow the trail under the bridge, then cross the creek on the bridge to get to a gravel parking area. From there the trail runs to Watkins Mill Road, where there is also a parking area. The trail continues north to its end at Watkins Road, but you can continue to Damascus Recreational Park on the Lower Magruder Trail.

References

{{coord missing, Maryland Hiking trails in Maryland Protected areas of Montgomery County, Maryland