Spatial Coverage
- Lee County28
- Mark Twain National Forest (Mo.)28
- Mendoza (Argentina : Province)28
- New London County28
- Pomerania (Poland and Germany)28
- Prussia (Germany)28
- San Francisco Bay Area28
- Texas.28
- Venice (Italy)28
- Windham County28
- Boston27
- Boston Metropolitan Area (Mass.)27
- Boulder County27
- Chicago27
- Henderson County27
- Iowa.27
- Los Angeles Metropolitan Area (Calif.)27
- Maine, Gulf of27
- Mississippi River Valley27
- Mozambique27
