| states | river |
| Colorado, Utah, Arizona, Nevada, California | |
| Washington, Oregon | |
| Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, Louisiana | |
| Montana, North Dakota, South Dakota, Nebraska, Kansas, Missouri | |
| Pennsylvania, Ohio, Kentucky, Indiana, Illinois | |
| Colorado, New Mexico, Texas | |
| Wyoming, Idaho, Oregon, Washington | |
| Wyoming, Montana, North Dakota | |
| Tennessee, Alabama, Mississippi, Tennessee, Kentucky | |
| New Hampshire. Vermont, Massachusetts, Connecticut | |
|