The lake is about four miles (6.4 km) long and about one mile (1.6 km) wide with its length oriented in an approximate northeast to southwest direction, the widest part at the northeast end. The village of Speculator is at its northern tip, and the hamlet of Lake Pleasant, the county seat, is by the western end. NY Route 8 traverses the north side of the lake, and South Shore Road goes around the south part.