Spatial Coverage
- Portugal2
- Río Negro (Argentina)2
- San Luis Potosí (Mexico : State)2
- Sonora (Mexico : State)2
- South America.2
- Tabasco (Mexico : State)2
- Tamaulipas (Mexico)2
- Tupungato Mountain (Argentina and Chile)2
- Ucayali River (Peru)2
- United States2
- Utah2
- Vancouver Island (B.C.)2
- Venezuela2
- Veracruz (Veracruz, Mexico)2
- Veracruz-Llave (Mexico : State)2
- Yucatán (Mexico : State)2
- Aconcagua, Mount (Argentina)1
- Adriatic Sea1
- Africa1
- Africa, North1
