United States, Minnesota, Big Stone, southern boundary of Strata Big Stone Quarry site in Ortonville; T121N R46W SE/SW SEC 22
45.269253 -96.424314
45° 16' 9.309" N, 96° 25' 27.532" W; collector
Semi-permanently inundated and isolated pool on a granite outcrop, water 0 to 100cm in depth, full sun, Pool is used by livestock as a watering hole. Water is turbid from recent and frequent livestock use.; free floating and rooted in silty substrate