- Fairhaven Tp., ca. 1 1/2 mi. SW of Bay Port1
- Fairhaven Tp., ca. 1½ mi. SW of Bay Port.1
- Fairhaven Twp. 1km SE of the Sumac Island public access.1
- Harbor Beach1
- Hear Huron City1
- Howick Tp Mun, Blind Lake Bog (=Lakelet Fen).1
- Hume Tp., "Wilderness Arboretum."1
- Hume Twp, ca. 14 mi NW of Bad Axe1
- Hume Twp., "Wilderness Arboretum" ca. 14 miles NW of Bad Axe.1
- Huron State Park.1
- In Fair Grounds, of Harbor Beach.1
- In the NW part of the tract, Flora of the "Wilderness Arboretum," ca. 14 miles NW of Bad Axe, Hume Township1
- Lake Huron shore, at Port Austin1
- Lake Huron, ca. 1.5 miles NE of Caseville1
- Limestone cliffs & ledges along the Maitland River ca 3-9 km SW of its mouth at Goderich.1
- Low dune areas near Lake Huron, ca. 1.5 mi. NE of Caseville.1
- McKinley Twp, ca. 6 mi SW of Caseville1
- N. side of Sand Point, ca. 5 miles SW of Caseville1
- N. side of Sand Point, ca. 5 miles SW of Caseville.1
- N. side of Sandy Point, ca. 5 miles SW of Caseville1