- International Rivers Network
 - Supports local communities working to protect their rivers and watersheds. - American Rivers
- Aims to protect and restore North America's river systems and foster a river stewardship ethic.
- River Network
- A national river conservation organisation dedicated to helping people save rivers and watersheds.
 Friends of the River Narmada
- Grassroots people's movement against the construction of large dams on the river Narmada in India.- Friends of the River
- Identifies outstanding rivers in California - and in watersheds shared with Oregon, Nevada and Arizona - and mobilises people to protect and restore their ecosystems.
- Idaho Rivers United
- Vigorously defends the heritage of Idaho's rivers and fish.
- National Rivers, The
- Sponsored by the National Organisation for Rivers. Includes conservation issues, magazine info, and more.
- Pacific Rivers Council
- A nonprofit conservation organisation dedicated to the protection and restoration of rivers, watersheds, and native aquatic species.
- Friends of the Mississippi River
- Working to protect and enhance the Mississippi River and its watershed in the Twin Cities area.
- Rio Grande Alliance
- Alliance concerned with the protection, improvement, and conservation of the Rio Grande Watershed.
- Center for Environmental Law & Policy
- Dedicated to maintaining clean, flowing waters in Washington State through acency oversight, policy research, litigation, and education.
- San Marcos River Foundation
- Dedicated to the conservation and preservation of the San Marcos River.
- Maine Rivers Site
- Confluence of news, discussion, and resources for people who care about rivers in Maine.
- WaterWatch of Oregon
- Nonprofit conservation organisation dedicated to protecting Oregon's rivers, wildlife, fish, and the people who depend on them.
- Chattooga Conservancy
- Organisation formed in 1991 through the shared vision of a group of citizens who began contesting the Forest Service's intensive logging and road building programme in the Chattooga River watershed's national forests.
- River Management Society
- Dedicated to the protection and management of North America's river resources.
- Futafriends
- Promoting sustainable growth and eco-tourism and supporting alternatives to a dam on the Futaleufu River Valley.
- RiverSmart
- National public education campaign designed to show people how simple changes in their everyday activities can help America's rivers.
- Citizens United
- Volunteer, nonprofit organisation dedicated to building stewardship and awareness of the Maurice River and its tributaries in southern New Jersey.
- Columbia Riverkeeper
- Working to protect and restore the water quality of the Columbia River and all life connected to it.
- Friends of the Lower Olentangy Watershed (FLOW)
- Dedicated to promoting responsible policies and uses of the Olentangy River and watershed.
- Save The Cumberland
- Providing environmental and other information associated with the 16th longest river in the U.S.
- Friends of the Mad River
- Nonprofit organisation dedicated to protecting and improving the ecological, scenic, and recreational values of the Mad River and its tributaries.
- Save Our Springs, Inc.
- Dedicated to protection of natural springs from overpumping, water mining,and pollution.
- Adopt a River
- Striving to protect and preserve North Florida's water supply through awareness, education, and hands-on litter prevention efforts.
- Save Our Riverfront Bushland (SORB)
- Bushland care group operating under the Brisbane City Council's Habitat Brisbane Programme. Includes bushland rehabilitation work along Pullen Reach.
- Hatchie River Project
- Dedicated to preserving the Hatchie as a wild river ecosystem in West Tennessee.
- Cedar Creek Wildlife Project, Inc.
- Working to preserve the stream in Northeast Indiana, along with its wildlife.
- Murray Catchment Management Committee
- Community and government organisation focused on the environmental, economic, and social issues of the Murray River catchment and surrounding areas.
- Rivershed Society of British Columbia (RSBC)
- Features information on the Spirit of the Salmon Swim, education programmes, River Works Fund, and other activities to promote sustainable living.
- Wolf River Conservancy
- Environmental advocacy group dedicated to the preservation of the Wolf River as a natural resource for public education and recreational activities.
- Five Rivers Waterwatch Inc.
- Central northern Tasmanian community group concerned with the water quality of local waterways.
- Friends of the Snake River
- Dedicated to the protection and preservation of the Minnesota's Snake River and watershed.
- DOWL Corporation
- Dedicated to keeping the Colorado River clean.
- Buffalo River Stewardship Foundation
- Dedicated to protecting the Buffalo River while respecting the property rights of land owners.
- Cannon River Watershed Partnership
- Working to protect the surface and groundwater resources and natural systems of the Cannon River Watershed in southeastern Minnesota.
- Friends of the Santa Clara River
- FCSR is a public interest organisation dedicated to the protection, enhancement and management of the river resources.
- Flint River Watchers
- Mission is to protect, preserve, police, and maintain the quantity and quality of the Flint River Basin.
- Friends Of The Edisto
- Educational and advocacy group supporting the implementation of the recommendations from the Edisto River Basin Task Force.
- Living Lands and Waters
- Aiding in the protection, preservation, and restoration of the natural environment of the nation's major rivers and their watersheds.
- Mackinaw River Partnership
- Local citizens working with federal, state, and local agencies and organisations to protect and preserve the Mackinaw River.
- Potomac Conservancy
- Dedicated to protecting and preserving the scenic and envirionmental qualities of the freshwater Potomac River.
- Tobyhanna Creek/Tunkhannock Creek Watershed Association
- Grassroots volunteers working to preserve one of Earth's last great places.
- Tuolumne River Trust
- Working to protect and restore the Tuolumne River, one of the most ecologically diverse streams in the Sierra Nevads, and home to the largest natural salmon run in the San Joaquin valley.
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