America's Most Endangered Rivers is a list of threatened rivers in the United States compiled by the nonprofit group American Rivers. First published in 1984, the annual list spotlights ten threatened riversâÂÂrivers that are facing environmental degradation due to existing or proposed development projects. The list is intended to build public awareness and spur action toward addressing specific environmental issues.
A number of rivers have been listed on America's Most Endangered Rivers multiple times, either in whole or in part. This list includes items that have appeared three or more times.
On April 15, 2025, American Rivers announced its ten most endangered rivers of 2025.
On April 16, 2024, American Rivers announced its ten most endangered rivers of 2024.
On April 18, 2023, American Rivers announced its ten most endangered rivers of 2023.
On April 19, 2022, American Rivers announced its ten most endangered rivers of 2022.
On April 13, 2021, American Rivers announced its ten most endangered rivers of 2021.
On April 14, 2020, American Rivers announced its ten most endangered rivers of 2020.
On April 16, 2019, American Rivers announced its ten most endangered rivers of 2019.
On April 11, 2018, American Rivers announced its ten most endangered rivers of 2018.
On April 11, 2017, American Rivers announced its ten most endangered rivers of 2017.
In April 2016, American Rivers announced its ten most endangered rivers of 2016.
On April 7, 2015, American Rivers announced its ten most endangered rivers of 2015.
On April 9, 2014, American Rivers announced its ten most endangered rivers of 2014.
In April 2013, American Rivers announced its ten most endangered rivers of 2013.
In May 2012, American Rivers announced its ten most endangered rivers of 2012.
In May 2011, American Rivers announced its ten most endangered rivers of 2011.
On June 2, 2010, American Rivers announced its ten most endangered rivers of 2010.
On April 7, 2009, American Rivers announced its ten most endangered rivers of 2009.
In May 2008, American Rivers announced its ten most endangered rivers of 2008.
In April 2007, American Rivers announced its ten most endangered rivers of 2007.
In April 2006, American Rivers announced its ten most endangered rivers of 2006.
In April 2005, American Rivers announced its ten most endangered rivers of 2005.
In April 2004, American Rivers announced its ten most endangered rivers of 2004.
In April 2003, American Rivers announced its ten most endangered rivers of 2003.
On April 4, 2002, American Rivers announced its eleven most endangered rivers of 2002.
On April 11, 2001, American Rivers announced its thirteen most endangered rivers of 2001.
On April 10, 2000, American Rivers announced its thirteen most endangered rivers of 2000.
On April 6, 1998, American Rivers announced its twenty most endangered rivers of 1998.
On April 16, 1997, American Rivers announced its ten most endangered rivers of 1997.
On April 17, 1996, American Rivers announced its ten most endangered rivers of 1996.
American Rivers announced its ten most endangered rivers of 1987 via press release, with no accompanying report. All ten rivers faced dam proposals. The rivers were not ranked.
American Rivers announced its ten most endangered rivers of 1986 via press release, with no accompanying report. The rivers were not ranked.