Region
- Wabash River2
- AlaskaKoyukuk River Valley1
- Arizona1
- ArkansasBuffalo National River1
- Atlanta (Ga.)1
- Belfast (Northern Ireland)1
- Belgium1
- Bell County (Ky.)1
- Big Creek (Forsyth County and Fulton County, Ga.)1
- BrazilFortaleza1
- Burundi1
- CaliforniaGlenn County1
- CaliforniaLake County1
- CaliforniaSan Francisco Bay Area1
- Champlain, Lake, Region1
- Charles County (Md.)1
- Claiborne County (Tenn.)1
- Clay County (Ga.)1
- ColoradoSan Juan County1
- Delaware River (N.Y.-Del. and N.J.)1