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Spatial Coverage
- Florida10
- Atlantic States4
- Kentucky4
- Middle Atlantic States4
- Mississippi River4
- New England4
- New Jersey4
- Atlantic Coast (South Atlantic States)2
- California2
- California, Southern2
- Hudson River (N.Y. and N.J.)2
- Indiana2
- Long Island (N.Y.)2
- Louisiana2
- Mississippi River Valley2
- Missouri River2
- Northeastern States2
- Northwest, Pacific2
- Ohio2
- Pennsylvania2
