Place
- Channel Islands1
- Congo1
- Connecticut River1
- Contra Costa County (Calif.)1
- Cuba1
- Côte d'Ivoire1
- Damariscove Island (Me.)1
- District of Columbia1
- Dominica1
- Duxbury Bay (Mass.)1
- Duxbury Point (Calif.)1
- El Salvador1
- Ethiopia1
- Farallon Islands1
- Farallon Islands (Calif.)1
- Fishers Island Sound (Conn. and N.Y.)1
- Gouldsboro Bay (Me.)1
- Great Bay (N.H.)1
- Guinea-Bissau1
- Harwich (Mass.)1