Hudson River Sloop Clearwater Inc

A nonprofit organization

1 Donor

Clearwater was founded in 1966 by folksinger Pete Seeger whose idea was to “build a boat to save the river.”  At the time, the Hudson was considered an industrial canal due to the severe pollution of the day. Seeger believed that building a Hudson River sloop, something not seen on the river for many decades, would bring people down to the river where direct experience of its beauty, fragility, and desperate plight would inspire people to take action to help save it.  Over more than four decades, Pete’s original concept has grown into an innovative template for environmental education and grassroots advocacy replicated by organizations around the world. The sloop Clearwater was launched on May 17, 1969 and since that time has worked to break the paradigm that the Hudson was beyond redemption.  Soon after the sloop’s launch, efforts were made to pass the landmark Clean Water Act (“CWA”), federal legislation that would dramatically help repair the nation’s rivers.  Clearwater was instrumental in building grassroots support for the CWA, including sailing to Washington, DC to advocate for the law’s passing.  Today, Clearwater is a 501(c)(3) not-for-profit, grassroots environmental organization of 9,600 members and a $2.25 million dollar annual budget. Our mission is to restore, preserve, and protect the Hudson River, its watershed, and the communities along its shores through science-based education, citizen action, & community outreach.


Organization Data


Organization name

Hudson River Sloop Clearwater Inc

Tax id (EIN)



Education Environment Children & Family


724 Wolcott Avenue
Beacon, NY 12508



How can we help?

Suggested articles

  • How does my nonprofit get started on Mightycause?
  • Why use Mightycause?
  • What is Mightycause?