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Maryland
Gunpowder Falls State Park
- Established
- 1959
- Acreage
- 15,088 · 15,088 acres across six non-contiguous areas in northeastern Baltimore and western Harford counties; established 1959 to protect the Big and Little Gunpowder Falls valleys
- Location
- Baltimore and Harford counties, MD (greater Baltimore area, north and east of the city)
- Key features
- Hammerman Area Chesapeake Bay beach; Hereford Area trails; Jerusalem Mill Village (1772 gristmill, NRHP); Sweet Air; Pleasantville; Dundee Creek Marina; trout streams
- Activities
- Swimming (Hammerman Beach), fishing (trout, smallmouth bass), tubing, kayaking, hiking 100+ mi of trails, mountain biking, horseback riding, history programs
- Notable
- Maryland's largest state park (15,088 acres in six discontinuous units); the Jerusalem Mill Village inside the park is one of the oldest 18th-century mill complexes still standing on its original foundation
Visits
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Source: dnr.maryland.gov · 2026-05-14