Arroyo Seco Foundation

The Arroyo Needs You Now . . .

Support the Campaign for Sustainable Watershed Management!



Or Make a Secure Online Donation Now —

Or Make a Sustaining Contribution of:


Share in Preserving Our Region's Greatest Natural Treasure

This is a very exciting and dynamic time for the Arroyo Seco—that great canyon that flows through our communities to link the San Gabriel Mountains all the way to downtown Los Angeles.

Your contribution will help support vital preservation efforts, volunteer activity and educational campaigns, while protecting our region's greatest natural treasure for future generations. Please give generously so that we can continue and expand our work to protect and enhance the Arroyo!

The Arroyo is a River

Your generosity is greatly appreciated.

The Arroyo Seco Foundation is a registered 501(c)(3) non-profit organization. All donations are tax deductible to the fullest extent allowed by the law. Please consult your lawyer, financial advisor or tax consultant for complete advice about the tax advantages or consequences of your contribution.

Pasadena Mayor Tornek Says:

“The ASF is the respected authority on and guardian of our treasured Arroyo Seco.

As the City moves ahead with devising and implementing our One Arroyo effort, we will continue to rely on the wisdom and energy of the ASF to help us make proposed improvements a reality.”

The NoBigDig lawsuit has succeeded in dramatically reducing the negative impacts of County Flood Control District's sediment mining program in Hahamongna Watershed Park on habitat, wildlife and our neighborhoods, but the fight to reduce air pollution, traffic congestion and habitat destruction goes on.

Hahamongna Nursery Native plants for habitat restoration, climate change adaptation and to beautify local yards and gardens.

Arroyo Seco Foundation, 570 W. Avenue 26 #450, Los Angeles, CA 90065-1011
PO Box 91622, Pasadena, CA 91109-1622 | (323) 405-7326 | info@arroyoseco.org