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 Network
River conservation resources, news, consulting services, land acquisition, grant and contact information for this non-profit organization for the protection of rivers.
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 N…
USGS Real-Time Water Data
Links to sites throughout the United States, by state, providing water level information.