Spatial Coverage
- Delaware County1
- Denver1
- Denver (Colo.)1
- Duncan Region (B.C.)1
- England1
- Europe, Eastern1
- Europe, Western1
- Fairfield County1
- Fergus County (Mont.)1
- France, Northern1
- Franklin County1
- Fresno County (Calif.)1
- Grand County (Colo.)1
- Grant County1
- Greenlee County1
- Greenlee County (Ariz.)1
- Herkimer County (N.Y.)1
- Hudson River (N.Y. and N.J.)1
- Idaho City (Idaho)1
- Iowa.1
