Place
- Belle Rose Island, Susie Islands, North Shore of Lake Superior2
- Erie-Dunka Mine, 5 miles east of Babbitt2
- Grand Marais, along north shore of Lake Superior2
- Le Clair2
- Ottertail Point on north side of Leech Lake 11 miles NE of Walker2
- Palisades Cliff north of Beaver Bay2
- Scott2
- Susie Islands, Long Island2
- Temperance River2
- southwest corner of Whitewater State Park2
- Aitkin1
- Along Co. Rd. 44, c. 8.5 mi from Hubbard County line1
- Along or near the International Boundary, Rainy Lake City1
- Along road near SW corner of Whitewater State Park1
- Annandale1
- Anoka1
- Arnold1
- At Skibo Vista, 12 miles southeast of Aurora1
- At north edge of Cannon Falls along highway 20. On southwest facing hillside with exposed sandstone.1
- Baute Lake1