Greenbelt’s John J. Donovan Reservation and Sagamore Hill Conservation Area provide miles of interconnected trails winding through woodlands and open hilltop fields with a distant view of the ocean. There is a cross trail that passes by the Sagamore Hill USAF Geophysics Lab Radio and Solar Observatory.
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- Horseback Riding
- Cross-country skiing
- Open sunrise to sunset
- No motorized vehicles
- No bicycles
- No hunting
- Stay on trail only
Access to the south end of the trail is via the Donovan Fields at 238 Sagamore Street in Hamilton, or at a kiosk near 321 Sagamore St. There is parking at the north end of the trail at 471 Sagamore Street .
Essex County Greenbelt. The Donovan Hill Trail is a public easement held by Essex County Trail Association.