[2] It is situated in a glacier-formed valley in the Cub Hills[3] and the boreal forest[4] ecozone of Canada.

It is located north of Lost Echo Lake and is accessed from Highway 913.

[5] Several small rivers flow into Summit Lake from the surrounding hills and muskeg.

Its outflow is at the western end and, via a short river, it flows into Caribou Creek, which flows south through the lakes of Lost Echo, Lower Echo, Upper Fishing, and Lower Fishing and is a tributary of the south flowing Stewart Creek.

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