- 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
- NE of Hwy 8, ca 2 km SE of Goderich1
- NW side of Rt. 25, ca. 9.5 km SW of Caseville1
- Near Caseville1
- Near Caseville, near Lake Huron Shore.1
- Near Harbor Beach.1
- Near Lake Huron.1
- Near Port Austin1
- Near Sebewaing.1
- Near shore of Lake Huron, Pointe Aux Barques.1
- North Island, near an old barn, Saginaw Bay.1
- Oak Point.1
- On fairgrounds of Harbor Beach.1