Lake Wentworth is located in Carroll County in eastern New Hampshire, United States, in the town of Wolfeboro. At 3097acre, it is the seventh-largest lake located entirely in New Hampshire. Water from Lake Wentworth flows through the short Smith River into Crescent Lake and then over the dam into Lake Winnipesaukee in Wolfeboro. The 50-acre Wentworth State Park offers public access to the lake.The lake is classified as a warmwater fishery, with observed species including rainbow trout, smallmouth and largemouth bass, chain pickerel, horned pout, and white perch.IslandsThere are at least 18 named islands in the lake: Stamp Act Island, Bass Island, Cate Island, Mink Island, Goose Island, East and West Jockey Cap Islands, Triggs Island, Turtle Island, Fanny Island, Brummet Island, and a group known as the Seven Sisters Islands: Sister Island, Poplar Island, Loon Island, Flo Island, Wal Island, Min Island, and Joe Island. There are numerous additional ledges, rocks, and islets in the lake.Bass IslandThe seventh largest of the islands, its name comes from the most dominant fish in the lake. Its original name was Goss Island, named after its original owner, Walter Goss. There is now one house on the island. The island is connected to Stamp Act Island through an underwater reef.