Mashpee River

The Mashpee River is a 4.8-mile-long (7.7 km)^[1] tidal river on Cape Cod in Mashpee, Massachusetts.

Mashpee River
Mashpee River and environs
Location
Country	United States
State	Massachusetts
Region	Mashpee
Physical characteristics
Source
• location	Mashpee and Wakeby Ponds
• coordinates	41.6522°N 70.4853°W / 41.6522; -70.4853
Mouth
• location	Popponesset Bay
• coordinates	41.596°N 70.467°W / 41.596; -70.467
Length	4.8 mi (7.7 km)

The river arises in Mashpee and Wakeby Ponds, flows south a short distance, and drains into Pirate's Cove on Popponesset Bay on the Nantucket Sound. Conservation efforts began in 1915 or earlier, and much of the surrounding region is now part of the Mashpee River Reservation owned and conserved by the nonprofit Trustees of Reservations.