United States, Minnesota, Pine, Pine Co. Kettle River Natural Area: 5.5 mi. E of Hinckley. NW1/4 SW1/4 Sec. 23, T41N, SW1/4.;Kettle River Scientific Natural Area / Sandstone National Wildlife Refuge;041N;20W;23
46.0186087 -92.8357974 +-800m.
Black ash swamp with Onoclea sensibilis, Cornus racemosa, Ulmus americana.