Maryland

Maryland

Seneca Creek State Park

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Established
1958
Acreage
6,300 · 6,300+ acres along 14 miles of Seneca Creek; opened as Seneca State Park 1958; expanded with state funds 1965-1968
Location
Montgomery County, MD (Gaithersburg/Germantown area)
Key features
90-acre Clopper Lake; 14 mi of Seneca Creek to the Potomac; 27-hole disc golf course; restored 19th-century Schaeffer Farmhouse and Clopper grist mill ruins; 50+ mi of trails
Activities
Hiking, mountain biking, horseback riding, fishing, paddling (rentals), disc golf, picnicking, ice skating on Clopper Lake (when safe)
Notable
The 16.5-mile Seneca Creek Greenway Trail traverses the entire park and connects to the C&O Canal towpath, forming part of a 24-mile contiguous trail corridor to the Potomac River

Visits

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Source: dnr.maryland.gov · 2026-05-14