Fish and Wildlife Service Class I Areas
- Bering Sea (AK)
- Bosque del Apache (NM)
- Breton (LA)
- Brigantine (NJ)
- Cape Romain (SC)
- Chassahowitzka (FL)
- Lostwood (ND)
- Medicine Lake (MT)
- Mingo (MO)
- Moosehorn (ME)
- Okefenokee (GA)
- Red Rocks Lakes (MT)
- Salt Creek (NM)
- St. Marks (FL)
- Seney (MI)
- Simeonof (AK)
- Swanquarter (NC)
- Tuxedni (AK)
- UL Bend (MT)
- Wichita Mountains (OK)
- Wolf Island (GA)