Place
- Plaquemines2
- Plummers Island2
- Puget Sound Islands, Waldron Island2
- San Juan2
- Santa Monica Range2
- Along road near SW corner of Whitewater State Park1
- Athens1
- Bayou Millieu1
- Brookings1
- Cape Flattery1
- Catalina Island1
- Chatham1
- Emmet1
- Everglades near Miami1
- Four miles west of Stanford1
- Greenport, Long Island1
- Harbor Springs1
- Hennepin1
- Indiana1
- Isle Royale. McCargo Cove.1