- Clay1
- Clyde Area, about one mile south of Nestow on secondary road1
- Colorado Springs1
- Concord1
- Contact UM Herbarium1
- Conway1
- Cook1
- Coos1
- Craggy Visitor Center, Blue Ridge Parkway mile 364.61
- Daniel'€™s Park, mesa section south of Denver1
- Deer Park, Columbia River1
- Deerton, Laughing Whitefish Point1
- Dennis Cove Campground c. 4 mi SE of Hampton1
- Douglas1
- Dreamers Rock, Tip of Cloche Peninsula, north of Little Current1
- Dungeness1
- Dunwich Township, Lot 16, Con XII1
- East of Cedarville, north of M1341
- East of Lansingburgh [Coordinates are for Mt. Rafinesque.]1
- Eaton1