Few things have such a fundamental impact on a river as a dam. Dams block a river’s flow and can harm clean water, fish and wildlife, and recreation opportunities. American Rivers has pioneered a science-based approach to the removal of outdated dams. Use this map to explore all the dam removals we have on file back to 1916. If you have information to help us update this map, let us know! Learn more about how dams hurt rivers and our current removal projects at www.AmericanRivers.org/Dams.