[2] Smoothstone Lake's primary inflow and outflow is the Smoothstone River,[3] which begins in the Waskesiu Upland and ends at Pinehouse Lake of the Churchill River.

Smoothstone Lake has a provincial recreation site and an outfitter on its shores.

Smoothstone Lake Recreation Site (54°35′33″N 106°57′32″W / 54.5926°N 106.9588°W / 54.5926; -106.9588)[7] is a conservation area situated at the southern end of the lake for fishing and other recreational opportunities.

Activities include hunting for white-tailed deer and bears, snowmobiling, and fishing.

[10][11] Fish commonly found in Smoothstone Lake include northern pike, walleye, burbot, cisco, lake whitefish, longnose sucker, white sucker, and yellow perch.