- Mazatlan, Mexico1
- Meigs County, Portland, Ohio, United States1
- Michigan, United States1
- Mohawk River, New York, United States1
- Moluccas, Indonesia 1
- Mumbai, India1
- New Bedford, Bristol County, Massachusetts, United States1
- New York Bay1
- Niagara Falls1
- Nolichucky River, Tennessee, United States1
- Ohio Drainage1
- Ohio River1
- Palermo, Sicily, Italy1
- Panama1
- Paraguay1
- Pendleton, Anderson County, South Carolina, United States1
- Portland, Meigs County, Ohio, United States1
- Red Sea1
- Rhode Island, United States1
- Rio de Janiero, Rio de Janiero, Brazil1