Lake Nipmuc is a freshwater lake located in the towns of Mendon and Upton in Massachusetts. It covers an area of approximately 200 acres and is known for its scenic beauty and recreational opportunities, including fishing, boating, and swimming. The lake is part of the Nipmuc watershed and is surrounded by a mix of residential properties and natural landscapes. It is home to various species of fish, making it a popular spot for anglers. The surrounding area also offers hiking trails and picnic spots for visitors to enjoy.