Place
- British Columbia4
- Houston4
- New York4
- Georgia3
- Kings3
- La Torricilla, Barrauquitas3
- Maine3
- Mississippi3
- New Hampshire3
- Northern Guavate Purchase Unit, Sierra de Cayey3
- Prince Edward Island3
- Thunder Bay3
- Vermont3
- Washtenaw3
- no data3
- Arkansas2
- Biscay Bay, Ferryland2
- Cape Breton Island, Cape Breton Highlands National Park, Mary Ann Falls2
- Carleton2
- Charlton2