• Length: 12 Miles
• Surface Area: 1,768 Acres
• Volume: 59,994 Acre Feet
• Drainage Area: 16 Square Miles
• Average Depth: 35 Feet
Great East Lake is an 1,825-acre water body located in Carroll County, New Hampshire, and York County, Maine, in the United States. The lake is shared by the towns of Wakefield, New Hampshire, and Acton, Maine, with 45% of its surface area in Acton and 55% in Wakefield. The lake is the farthest upstream of the five headwater lakes of the Salmon Falls River, a tributary of the Piscataqua River. Water from Great East Lake flows out its dam and through the 800-foot Newichawannock Canal into Horn Pond, then into the Salmon Falls River below Horn Pond.
The widest part of the lake is in New Hampshire. The lake narrows to the east in Maine, creating the First, Second and Third basins. Great East Lake is the largest of the Salmon Falls headwater lakes.
Great East Lake supports abundant wildlife, and 21 fish species including lake trout, rainbow trout, smallmouth bass, largemouth bass, American eel, hornpout, white perch, black crappie and chain pickerel.
The Great East Lake watershed is located in Acton, Maine, and Wakefield, New Hampshire, and covers approximately 9,939 acres. Great East Lake is part of the Piscataqua River major drainage basin and the Salmon Falls River subdrainage basin. Great East Lake flows into Horn Pond which in turn starts the Salmon Falls River at its outflow. The Salmon Falls River then flows into the Piscataqua River and into the Great Bay estuary and the Gulf of Maine.