Mashpee River

Popponesset Bay System is a group of bays located at the towns of Mashpee (north & west) and Barnstable (east), on Cape Cod, Massachusetts with a southern shore bounded by water from Nantucket Sound. Popponesset Bay has the following tributary sub-embayments: Ockway Bay Shoestring Bay Mashpee River Estuary Pinquickset CoveThe bay system is fed by the Mashpee River and Santuit River. Popponesset Creek is not a tributary but rather connects with the bay on both ends and separates Popponesset Island from the mainland. The bay's watershed is distributed among the towns of Mashpee, Barnstable and Sandwich, Massachusetts. The town of Sandwich does have jurisdiction over land and associated land uses in the uppermost portions of the Popponesset Bay watershed. Portions of the Popponesset Bay watershed that exist within the Town of Sandwich are mostly situated above the Mashpee and Wakeby Ponds. Popponesset Bay has experienced problems with eutrophication from high nitrogen loads in the groundwater and runoff from the watersheds. The present bay results from tidal flooding of drowned river valleys formed primarily by the Mashpee and Santuit Rivers as a result of a risen sea level. The Bay is separated from Nantucket Sound by Popponesset Peninsula, a barrier spit which extends from the southwestern shore and is mostly occupied by Popponesset Beach. Popponesset Beach is known to the locals as simply "The Spit." Popponesset Bay has a second beach in the form of a sand bar in the middle of the bay, which is submersed during high tide. This island is known as Low Tide Island. The bay exchanges tidal water with Nantucket Sound through a single maintained inlet. The shore to the north of the inlet has been stabilized with riprap as has the heavily residential southern portion of Popponesset Beach. The current spit is significantly shorter than seen in the 1880 Barnstable County survey. The village of Popponesset takes its name from these waters.

Holly Marsh is a small saltwater marshland in Mashpee, Massachusetts on the shores of Popponesset Bay, Cape Cod.The marsh starts at Daniel's Island (actually a peninsula) and extends down both the mainland side and the Popponesset Island side of the Popponesset Creek.

Popponesset Island is an island and census-designated place (CDP) in the town of Mashpee in Barnstable County, Massachusetts, United States. The population was 220 at the 2010 census.

Popponesset Creek is a small waterway in Mashpee, Massachusetts on Cape Cod. On both ends, it connects with Popponesset Bay. Popponesset Creek runs from Holly Marsh down to Popponesset Peninsula and serves to separate Popponesset Island from the bay. An automobile bridge crosses Popponesset Creek from Holly Marsh to Popponesset Island. Both sides of the creek are lined with saltwater marshland.

Mashpee Neck is a census-designated place (CDP) in the town of Mashpee in Barnstable County, Massachusetts, United States. The population was 1,000 at the 2010 census. It is the most populous of the seven CDPs in Mashpee.

Popponesset Spit is a spit between Popponesset Bay and Nantucket Sound. The barrier peninsula extends for about 1.0 mile (1.6 km) from the community of Popponesset in Mashpee on Cape Cod in Massachusetts and is part of the coastline known as Popponesset Beach. The tip of the peninsula is owned by the Massachusetts Audubon Society while the landward end is owned by Save Popponesset Bay.The peninsula is now significantly shorter than seen in the Barnstable County survey of 1880. Portions of the shore have been stabilized with riprap to deter further erosion. Most of this work was done immediately after Hurricane Bob which in 1992 had opened an inlet through the beach. The peninsula is home to bird sanctuary and other conservation projects that prevent disturbance of the piping plover, an endangered species, and terns.

Popponesset is a census-designated place (CDP) in the town of Mashpee on Cape Cod in Barnstable County, Massachusetts, United States. The population was 220 at the 2010 census.

New Seabury is a census-designated place (CDP) in the town of Mashpee in Barnstable County, Massachusetts, United States, on Cape Cod. The area consists primarily of summer homes for wealthy families. Attractions include a county club and the Fells Pond, Daniels Island, and Littleneck Bay neighborhoods. The population of the CDP was 717 at the 2010 census. The community is located on the historic home of the Wampanoag Nation.

The Santuit River, also known as the Cotuit River, is a 2.3-mile-long (3.7 km) river on the border between Mashpee and Cotuit, Massachusetts on Cape Cod. The river flows southwards from the southern end of Santuit Pond into Popponesset Bay (also known as Shoestring Bay) on the south shore of Cape Cod. The river was a vigorous herring/alewife run and has been reputed to hold sea-run brown trout. It was alleged that overpumping by an adjacent golf course caused the river to run dry in the early 1990s but that charge was denied.

Mashpee River Reservation is a park in Mashpee, Massachusetts on the Mashpee River. The Trustees of Reservations owns and maintains the park.Pristine shoreline, natural spawning areas, and excellent water quality make the Mashpee River one of Massachusetts' finest sources of sea-run brook trout. Since at least 1915, spirited conservation efforts have led to the protection of this five-mile tidal river which begins at Mashpee and Wakeby Ponds and empties into Pirate's Cove on Popponesset Bay. This area has two miles of trails through the Mashpee River Reservation plus additional connecting trails on property of other conservation organizations and town and state government properties. The Reservation's woodland and shoreline trails form a link in the Cape Cod Pathways.

The Old Indian Meeting House (also known as the Old Indian Church) is a historic meeting house at 410 Meetinghouse Road in Mashpee, Massachusetts. Built in 1758, the meetinghouse is the oldest Native American church in the eastern United States and the oldest church on Cape Cod. The building was listed on the National Register of Historic Places in 1998.

Mashpee Commons is a lifestyle center located on Cape Cod in the town of Mashpee, Massachusetts. The center opened in 1986 and is considered to be an early example of new urbanist development.