United States, Minnesota, Itasca, Collection Site no. 63, ca. 11.5 mi NW of Grand Rapids, in roadside drainage ditch adjacent to hwy 161; NW1/4 NW1/4 Sec. Collection Site no. 63, ca. 11.5 mi NW of Grand Rapids, in roadside drainage ditch adjacent to hwy 161; NW1/4 NW1/4 Sec. 15 T56N R27W. 056N 27W 15