Native Fish in the Arroyo — Can We Bring Them Back?

Did the trout survive the drought?
What is the history of fish in the Arroyo?
What is the potential for native fish restoration?
What is the current restoration program?
Fish or Concrete — What's the Future?

Wednesday, July 12, 7:00 pm

Donald Wright Auditorium
Pasadena Central Library
285 E. Walnut St., Pasadena

Nursery News

June was a great month at Hahamongna Native Plant Nursery. We moved thousands of native plants into local yards and gardens and reduced our stock for the long hot summer.

Nick Hummingbird, our wonderful nursery manager for the last two years, has moved on to take on new life commitments and opportunities, but we're going to keep the nursery going with a new infusion of volunteer energy and leadership.!

Would you like to be part of the Hahamongna Nursery Team? You can help keep the plants alive during the long, dry summer, and then share in the excitement of the fall, learning how to propagate and tend California's most venerable and spectacular plants.

For information call the nursery number at (626) 657-0392 to leave a message or send an email to

San Gabriel Mountains National Monument: On the Chopping Block?

Mayor Tornek Announces Arroyo Planning Effort

Judge Halts Big Dig in Hahamongna

Judge James Chalfant has ordered a stay of all activity related to the County Flood Control District's massive sediment mining and trucking operation in Hahamongna Watershed Park. In a big victory of the Arroyo Seco Foundation and Pasadena Audubon, the judge ordered LA County to revise sections of the EIR dealing with air pollution, cumulative impacts from other projects and the amount of mitigation that must be completed.

KPCC- "Environmentalists win temporary halt to Devil's Gate Dam dig-out"

Pasadena Now - "Judge Halts Devil's Gate Sediment Removal Project"

March 23 Hearing  |  Fact Sheet  |  Contact the Supervisors

December, 18, 2016 - Volunteers from Arroyo Seco Foundation and Hahamongna Nursery along with Linda Vista Library Associates transformed the library into a beautiful native plant garden.

Exciting Arroyo Ecosystem Restoration Plans Unveiled

An almost overwhelming array of restoration alternatives for the Arroyo Seco were presented at a November 15 workshop in Pasadena.

Meeting Report | Frequently Asked Questions | Alternatives

2017 Is the Year of the Arroyo Seco River

Three Great Hikes in the Arroyo Seco

Learn About the Plan to Restore the Arroyo

Click here to view the US Army Corps of Engineers' Presentation

Seifert: Cities Must Engage

The New Board of Supervisor Should Say No to the County's Big Dig Program for Hahamongna

Now that Superior Court Judge has found County Flood's Environmental Impact Report for the sediment mining and trucking operation in Hahamongna grossly deficient, it's time for the new Board of Supervisors to take a fresh look at the County's devastating plan for the Arroyo Seco. Their program to send 400+ double-bedded, diesel-spewing trucks per day for the next five years to clog our streets and neighborhoods and permanently destroy our region's most important treasure just doesn't make sense, and the new board should show the leadership to mandate a long-term, sustainable sediment management plan that can protect Hahamongna and our neighborhoods from environmental destruction while providing sustainable flood protection.

Arroyo River Parks
Restoring a Living River

Arroyo Seco Canyon Project

The Canyon Project is an innovative program to improve water resources and environmental conditions in the Arroyo co-sponsored by the Arroyo Seco Foundation and Pasadena Water & Power Department. As the result of a legal challenge, the project is now undergoing further environmental review.


Why Not a Complete San Gabriel Mountains National Monument

By a mysterious process that no one will explain, the Arroyo Seco and the southwest corner of the Angeles National Forest were eliminated at the last minute when the San Gabriel Mountains National Monument was announced. It's a shame because many of the most treasured and historic sites in the San Gabriel Mountains are contained in the territory that was not included.


Congresswoman Judy Chu has now proposed legislation that would expand the boundaries of the national monument to include all of the treasures of the Angeles National Forest.


Don't Forget Your Conservation Habits - Click Here: