The W. A. C. Bennett Dam is a large hydroelectric dam on the Peace River in northern British Columbia. At 183 m high, it is one of the world’s highest earth fill dams. Construction of the dam began in 1961 and culminated in 1968. At the dam, the Finlay, the Parsnip and the Peace Rivers feed into Williston Lake, also referred to as Williston Reservoir. It is the third largest artificial lake in North America as well as the largest body of fresh water in British Columbia.

There is a Visitor Centre, overlooking Williston Lake Reservoir, offers a wide range of exhibits and an audio-visual theatre.