Black Hill Regional Park
No admission feeOver 2,000 acres of outdoor recreation around Little Seneca Lake in Montgomery County, Maryland.

Photo: randomduck, CC BY-SA 2.0, via Wikimedia Commons. Cropped and resized.
A roughly 6,300-acre Maryland state park along Seneca Creek, known for trails, boating, disc golf, and local history.
11950 Clopper Road, Gaithersburg, MD 20878 · Gaithersburg, MD
Managed by the Maryland Department of Natural Resources, this Montgomery County park stretches along about 14 miles of Seneca Creek as the creek flows toward the Potomac River. Clopper Lake, a 90-acre lake in the day-use area, supports small self-launched watercraft and rental canoes, kayaks, and pedal boats, though swimming is not allowed. More than 50 miles of trails serve hikers, mountain bikers, and horseback riders, with the Schaeffer Farm network a popular choice for riders. Visitors can also play a 27-hole disc golf course, picnic at several groves, and explore historic sites such as a restored 19th-century cabin, Black Rock Mill, and the Schwartz Peony Garden. The park was also a filming location for The Blair Witch Project in 1997.
The closest stops to Seneca Creek State Park, ordered by straight-line distance. A few more like it, plus some different kinds of fun so you can build a full day.
Over 2,000 acres of outdoor recreation around Little Seneca Lake in Montgomery County, Maryland.
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See postwar and contemporary art in quiet pavilions and outdoor sculptures set across meadows, woods and a water garden.
Transit: reachable by public transit
5.8 mi awaySwitch it up: Museums
A 2.75-acre Montgomery Parks site in Clarksburg built around the history of an 18th-century tavern.
6.4 mi awayMore like this
A 12.2-acre Rockville park with three playgrounds, paved nature trails, fitness equipment, and a basketball court.
6.6 mi awayMore like this
Historic canal lockhouse and hotel now serving as a national park visitor center.
10 mi awaySwitch it up: Sightseeing
A large shopping center in Loudoun County with retail stores, dining, a movie theater, and family entertainment.
12 mi awaySwitch it up: Shopping