| American Heritage Rivers: US EPA program to help river communities restore their environment, revitalize their economy, renew their culture and preserve their history. |
| American Rivers: A national non-profit conservation organization dedicated to protecting and restoring America's rivers and to fostering a river stewardship ethic. |
| Mississippi River Basin Alliance: A citizens' coalition that unites environmental justice organizations and traditional conservation groups around issues impacting the Mississippi River and its tributaries. |
| River Forecasts: Forecasts for Mississippi, Missouri, Illinois, and Ohio Rivers from NOAA. |
| River Network: River conservation resources, news, consulting services, land acquisition, grant and contact information for this non-profit organization for the protection of rivers. |
| Southeast River Forecast Center: National Weather Service office that produces daily river and flood forecasts for rivers in the Southeastern U.S. |
| The Nationwide Rivers Inventory: A listing of more than 3000 free-flowing river segments in the United States that are believed to possess one or more "outstandly remarkable" natural or cultural values. From the National Park Service. |
| Upper Mississippi, Illinois and Missouri River Association: Mission is to promote improvement and maintenance of the flood control and navigation systems in the Upper Mississippi, Illinois and Missouri River Valleys. |
| USGS Real-Time Water Data: Links to sites throughout the United States, by state, providing water level information. |
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