Place
- Big Horn1
- Brook Lake, border of1
- Bulldog Lake to East Falls, along trail from, Yellow Dog River, CH McCormick Experimental Forest, 14 mi NNW of Champion1
- Byron Bog, London1
- Caldwell1
- Carleton1
- Carroll1
- Carter1
- Carter caves1
- Cascade Glen, Ann Arbor1
- Chalybeate Springs1
- Cheboygan1
- Cheshire1
- Chickenbone Lake Outlet, Isle Royale1
- Clinton1
- Cloudland Canyon, east of Trenton1
- Colchester1
- Conewago1
- Cookshire Road, Ascott1
- Creston, Corn Creek marshy area unit, Creston Valley Wildlife Center, Hwy. 31