Place
- Alma.1
- Along Lake Ontario on Edgemere Drive.1
- Along shore of Keweenaw Bay, ca. 3 mi. NNE of L'Anse.1
- Anderson1
- At foot of Pictured Rocks by Miner's Castle (ca. 7 mi. NE of Munising).1
- At mouth of Chapel Creek.1
- Atlantic1
- Bayfield1
- Berrien1
- Blaine1
- Bois Blanc Island, edge Echo Lake1
- Border of Rush Lake near Huron Mountain Club, abundant.1
- Budd Lake, east of Harrison.1
- Butte1
- Carbon1
- Chippewa1
- Clare1
- College Point, Long Island.1
- Coos1
- Creighton Marsh, T46N, R16W, NE1/4 SW1/4 NE1/4 sec.121