Lake Size: 25,183 acres (101.91 km)
Deepest Depth: 150 feet (46 m)
Latitude: 45.987222
Longitude: -69.340833
Lake Level Above Sea Level: 942 feet (287 m)
Counties: Piscataquis County

Information: Chesuncook Lake is a reservoir in Piscataquis County, Maine, formed by the damming of the western branch of the Penobscot River in 1903 and 1916. It is approximately 22 miles (35 km) long and 1–4 miles wide, with a surface area of 25,183 acres (101.91 km2) and a maximum depth of 150 feet (46 m). It is the third-largest body of fresh water in Maine.