Spatial Coverage
- Europe, Central2
- Hawaii2
- Idaho2
- Jeff Davis County (Tex.)2
- Kentucky2
- Klondike River Valley (Yukon)2
- London (England)2
- Northwest Territories2
- Powhatan County (Va.)2
- Silver Bow County (Mont.)2
- Tennessee2
- Utah2
- West Virginia2
- Yukon2
- Yukon Territory2
- Ada County (Idaho)1
- Adams County (Neb.)1
- Africa, Southern1
- Alabama1
- Alaska Peninsula (Alaska)1
