- Grand Detour.1
- Lime Island1
- Near center E1/2 sec. 5, T46N, R7W, on clay soil near Big Beaver Creek, ca. 4.5 mi. NW of Hulbert.1
- Prentiss Bay1
- Prentiss Bay,1
- Sugar Island, 3 miles N.W. Homestead1
- Sugar Island; Chippewa co. rd. commission gravel pit1
- T41N, R6E, NW1/4SE1/4 Sec. 18 Drummond Island1
- T41N, R6E, SW1/4NE1/4 Sec. 18 Drummond Island; north end of Warners Cove,1
- The Chase S. Osborn Preserve of the University of Michigan, near the southern end of Sugar Island, opposite north end of Duck Island,1
- The Chase S. Osborn Preserve, near the southern end of Sugar Island,1
- at Brimley,1
- at Emerson1
- at SW corner of Palms Preserve (Little Traverse Conservancy), near SW corner sec. 9. T50N, R7W.1
- at Whitefish Bay, mouth of Tahquamenon River1
- frequent on sandy shore of Lake Huron, NE1/4 SE1/4 sec. 10, T41N, R3E. ca. 7 mi. SW of Detour Village.1
- near Emerson,1
- near Whitefish Bay, 4 miles south of Paradise1
- near Whitefish Pt. P. O.1
- near center E1/2 sec. 5, T46N, R7W, near Big Beaver Creek, ca. 4.5 mi. NW of Hulbert.1