It is fed by the Little River, also known as the Little Shuswap River, and is the main source of water for the South Thompson River, which begins at the lake's outlet at its southwestern end. The lake is approximately 7.8 km in length, NE to SW, and averages 2.4km in width and is approximately 18 km² in area.
The recreational and Secwepemc First Nations community of Chase (known as Quaaout in the Secwepemc language) is at the lake's southern end. The smaller community of Squilax lies at the lake's northern end, on the north side of the estuary of the Little River. The TransCanada Highway and Canadian Pacific Railway run along the lake's eastern shore.