Place
- Minnesota2
- Mississippi2
- Missouri2
- Montana2
- Monterey County (Calif.)2
- Muscongus Bay (Me.)2
- Nebraska2
- Nevada2
- New Mexico2
- New York2
- New York Harbor (N.Y. and N.J.)2
- North Carolina2
- North Dakota2
- Northern Mariana Islands2
- Ohio2
- Oklahoma2
- Pacific Grove (Calif.)2
- Pennsylvania2
- Santa Barbara Channel (Calif.)2
- South Carolina2