United States, Minnesota, Washington, Washington Co. At the E end of Square Lake, about 3 mi S-SW of Marine on St. Croix; SE1/4 SE1/4 sec.23, T31N R20W;;031N;20W;23
45.1547241 -92.7961121
Floating near the surface. Frequent submergent species include: Potamogeton richardsonii, Vallisneria americana, Myriophyllum sibiricum, Najas flexilis.