United States, Wisconsin, Marathon, Eau Pleine; Middle of east edge of sec. 16. CTH O at Eau Pleine Reservoir
44.7353182° N, 89.792557° W; T26N R06E sec16
Edge of causeway over reservoir amid large rocks; narrow marshy band between causeway and open water; edge of moist woods of hemlock. white pine, red maple, aspen, paper birch, etc. On causeway.