Sebago Lake

Sebago Lake is a reservoir in Cumberland County, Maine, that covers 117 square kilometers and features 169 kilometers of shoreline. The water reaches a depth of 96 meters at its deepest point and ranks among the largest lakes in the state.

The Eel Weir Dam was constructed at the lake in 1827 to control water flow into the Presumpscot River. Significant modifications to the dam structure took place in 1884, shaping its current form.

The name comes from the Abenaki word 'sobagoo', which describes this large body of water that reminded native peoples of a sea. Local families gather along its shores during summer months to swim and fish in waters that have supported communities for generations.

The Portland Water District manages the reservoir, which provides drinking water for one fifth of Maine's population. Visitors will find several public access points along the shores where waterfront recreation is possible.

British military pilots trained over the lake during World War II, with several aircraft crashing into its waters. A Corsair fighter plane collided mid-air in 1944 and still rests on the bottom today.

Location: Cumberland County

Elevation above the sea: 82 m

GPS coordinates: 43.85000,-70.56667

Latest update: December 19, 2025 23:50