- Grace Harbor, Hammond Bay, Lake Huron.3
- Mystery Valley Karst Preserve, central valley.3
- On Canada Creek.3
- near Hammond Harbor3
- Clinton Lake, 5.5 mi SE of Posen2
- Grace Harbor2
- Grace Harbor, Hammond Bay2
- Hoeft State Park north of Rogers City.2
- Krakow Twp. 150 ft. W. of bridge on Old State Rd ca. 12 mi. SE of Rogers City.2
- Little Ocqueoc River, head of2
- Loon Lake2
- Ocqueoc Lake.2
- Oqueoc Lake.2
- Presque Isle Tp., ca. 2.5 mi. SE of Presque Isle P.O.2
- Rainy River near Black Lake2
- Rogers City.2
- W. shore of Lake Sixteen, Black Lake State Forest, 8 miles W. Hammond2
- West fork of Quinn Creek w. of Hawks on PI 638, Bismark T.S.2
- along north shore of Swan Lake, 4 miles east of Rogers City2
- at the S.W. corner of M-68 and US-23 on the west side of Rogers City. Rogers Twp. T35N, R5E, Sec.21 SE1/42