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Maryland
Susquehanna State Park
- Established
- 1960
- Acreage
- 2,753 · 2,753 acres along the lower Susquehanna River; began 1958 with J. Gilman D'Arcy Paul's 300-ac donation offer; state began purchasing land 1960
- Location
- Harford County, MD (north of Havre de Grace, on the lower Susquehanna)
- Key features
- Rock Run Historical Area: Rock Run Grist Mill (1794), 1804 Carter-Archer Mansion, Jersey Toll House; remnants of the Susquehanna & Tidewater Canal; Lower Susquehanna River; Steppingstone Farm Museum
- Activities
- Hiking, mountain biking (15+ mi of multi-use trails), camping, fishing, boating, picnicking, history tours of mill and mansion
- Notable
- The 1794 Rock Run Grist Mill inside the park is one of the oldest standing grist mills in Maryland; on the National Register of Historic Places along with the Carter-Archer Mansion (1804)
Visits
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Source: dnr.maryland.gov · 2026-05-14