- Caratunk Twp., along Pleasant Pond Stream from outlet at Pleasant Pond to ca 1 mi E1
- Carrying Place Township, Otter Pond Stream, tributary of Pierce Pond Stream, just West of Kennebec River at Caratunk1
- Champlain Mountain, Acadia National Park1
- Chimney Pond Trail, east slope of Mount Katahdin1
- Clinton1
- Concord, Old Bluff1
- Concord, Old Bluff, top of cliff1
- Contact UM Herbarium8
- Crystal Twp., circa 3 miles west of Island Falls along Rte 1591
- Cumberland8
- Cumberland, Mill Brook1
- Cutler1
- Davis Island, Sheepscot River at The Eddy just north of North Edgecomb1
- Dover, Falls of Piscataquis River1
- Dover, Little Cave, Piscataquis River1
- Dover, Piscataquis River1
- Dover-Foxcroft1
- Dover-Foxcroft, Piscataquis River, Little Cave1
- Dry brook near table land Katahdin.1
- Durham Township, along west bank of Androscoggin River just below falls at Lisbon Falls, <14649-14745>1