Assawompset Pond is the largest natural freshwater lake in Massachusetts, located in the town of Lakeville. It covers an area of about 2,100 acres and has a maximum depth of 17 feet. The pond is part of the Taunton River Watershed and serves as a source of drinking water for several nearby communities. Assawompset Pond is a popular recreational destination, offering fishing, boating, swimming, and wildlife viewing opportunities. Assawompset Pond has a rich history and cultural significance, dating back to the Native American tribes that inhabited the area before the arrival of European settlers. The pond was the site of several battles during King Philip's War in the 17th century and was later used for industrial purposes such as ice harvesting and cranberry cultivation. Today, Assawompset Pond is protected by state and local regulations and conservation efforts to preserve its natural beauty and ecological value.

The Assawompset Ponds Complex on the Plymouth-Bristol County line comprises Assawompset, Pocksha, Great Quittacas, Little Quittacas, and Long Ponds. Long Pond is heavily developed and the only one in the complex open to public recreation, and therefore is not included within the site boundary. Assawompset and Long Ponds are Massachusetts's two largest natural water bodies, and the complex is a significant archeological site.

The Assawompset Pond Complex is considered an “Important Bird Area” by the Mass Audubon Society. This conservation land contains about 10,000 acres of oak-conifer transitional forests, lakes, ponds, and wooded swamps. There are also a variety of spots for anglers to fish. If you’re lucky, you may even be able to spot the nesting bald eagles.

Parts of the complex are open to hunting and fishing with public access via Long Pond.

How to explore the Assawompset Pond Complex by the Buzzards Bay Coalition has tips on birding this Important Bird Area.