Mashpee River

Mashpee River
Mashpee River and environs
Location
CountryUnited States
StateMassachusetts
RegionMashpee
Physical characteristics
Source 
  locationMashpee and Wakeby Ponds
  coordinates41°39′08″N 70°29′07″W / 41.6522°N 70.4853°W / 41.6522; -70.4853
Mouth 
  location
Popponesset Bay
  coordinates
41°35′46″N 70°28′01″W / 41.596°N 70.467°W / 41.596; -70.467
Length4.8 mi (7.7 km)

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

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.