Mashpee River
Mashpee River (Massachusetts) map.jpg
Mashpee River and environs
CountryUnited States
Physical characteristics
 • locationMashpee and Wakeby Ponds
 • coordinates41°39′08″N 70°29′07″W / 41.6522°N 70.4853°W / 41.6522; -70.4853
 • location
Popponesset Bay
 • coordinates
41°35′46″N 70°28′01″W / 41.596°N 70.467°W / 41.596; -70.467Coordinates: 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)[1] 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.


  1. ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived 2012-04-05 at WebCite, accessed April 1, 2011