- Near L'Anse2
- Near Upper Falls, Sturgeon River, ca. 6.5 mi. NE of Covington.2
- On north side of Pequaming Peninsula.2
- Roadside north of Baraga.2
- S. shore of Sand Bay, ca. 2 mi. ENE of Pequaming.2
- Section 18, T49N, R33W, Ford Forestry Center.2
- South of Baraga2
- Swamp north of Baraga.2
- near L'Anse,2
- sec. 21, 22, 28 T48N, R31W; near Three Lakes2
- Along US-Highway 41, north of Baraga.1
- Along shore of Keweenaw Bay, ca. 3 mi. NNE of L'Anse.1
- At Arnheim.1
- At west end of Lake Michigamme.1
- Between M-28 and the railroad tracks at Watton.1
- Ca. 7 mi. NE of Skanee, Lake Superior Shore, Point Abbaye1
- East of Sturgeon River, ca. 7.5 miles WSE of Baraga. Ca. 2.5 miles NE (downstream) of Prickett Dam.1
- East side of Huron Bay at Lightfoot Bay.1
- East side of Pequaming Peninsula1
- East side of Sturgeon River, ca. 7.5 miles WSW of Baraga, ca. 0.5 miles NE (downstream) of Prickett Dam.1