Spatial Coverage
- Minnesota2
- Montana2
- New Jersey2
- New York (State)2
- Oakland (Calif.)2
- San Leandro (Calif.)2
- Snake River (Wyo.-Wash.)2
- Soviet Union2
- Turkey2
- Walla Walla County (Wash.)2
- Washington2
- Western Front2
- Adams County (Wash.)1
- Adriatic Sea Region1
- Ainsworth Region (B.C.)1
- Alameda.1
- Albany (Calif.)1
- Alsace (France)1
- Arizona1
- Arvada1
