Spatial Coverage
- Long Island Sound (N.Y. and Conn.)1
- Long Island Sound.1
- Long Island.1
- Macomb County1
- Macomb County (Mich.)1
- Manhattan (New York, N.Y.)1
- Manhattan.1
- Maryland.1
- Massachusetts1
- Mexico, Gulf of1
- Mexico, North1
- Mexico.1
- Middle West1
- Minnesota1
- Mississippi1
- Missouri River Watershed1
- New Haven1
- New Haven (Conn.)1
- New York1
- New York (N.Y.)1
