Meltwater from the glaciers carved out the valley and as water levels rose and fell, alluvium was left in the wake.

Echo Valley Provincial Park is located at the western end of the lake, south of Standing Buffalo and west of B-Say-Tah.

The park features camping, hiking, and access to both Pasqua and Echo Lakes for boating, swimming, and fishing.

The Saskatchewan Fish Hatchery (formally Fort Qu’Appelle Fish Culture Station), originally established in 1913, is located along Highway 210, 5 kilometres (3.1 mi) west of Fort Qu'Appelle and 2 kilometres (1.2 mi) east of Echo Valley Provincial Park, on the west side of B-Say-Tah.

[12][13] Fish commonly found in the lake include northern pike, walleye, and yellow perch.