What's the Fuss?

Tim Martinez Takes You On a Tour of the Rare Riches of Hahamongna

As the deadline for sediment comments closes, come learn about why Hahamongna is our region's greatest environmental treasure on a family-paced exploration of Hahamongna and Devil's Gate Dam.

Saturday, January 18, 2014, 10 am

more information

Sediment Comments Deadline: Tuesday, January 21st

The Drought Gets Real


Some Things You Can Do

Arroyo Verde Awards Recap

The 2013 Arroyo Verde Awards, our region's most prestigious environmental awards will be given out at the holiday meeting of the Council of Arroyo Seco Organizations on Thursday, December 19 at 7 pm at the Pasadena Humane Society, 361 S. Raymond, Second Floor. We hope you'll join us to celebrate another year of accomplishments in the Arroyo Seco and the people who made that possible.

We will announce the winners of the 2013 Awards next week. Last year's award featured the least Bell's Vireo, the endangered bird spotted in Hahamongna, pictured on the right.

2014 is the Year of
Arroyo River Parks

All along the Arroyo Seco from Mount Wilson at the top to downtown Los Angeles, the Arroyo Seco canyon is dotted with parks and open space that offer terrific opportunities for genuine river restoration of large stretches of the Arroyo.

A central focus of the Arroyo Seco Foundation in 2014 will be the integration parks with the Arroyo river and the Arroyo river with the parks. With the Corps ecosystem study on the Arroyo now nearing completion, we hope that the Arroyo River Parks will be the basis for future plans for the Arroyo.

Arroyo River Parks Principles

  • Integrate parks with the river and the river with the parks
  • Manage parks and open space to aid flood protection and water conservation and quality
  • Develop open space linkages for wildlife movement
  • Naturalize the stream and floodplain to restore riparian and aquatic habitat
  • Expand the trail network to connect parks, open spaces and cultural resources
  • Provide interpretative signage and educational programs to make the Arroyo an educational laboratory for Southern California

Arroyo Seco Canyon Tour

Come see an integrated project to improve environmental conditions and water supply in the Arroyo Seco.

Welcome to the Arroyo Seco Calendar! Your guide to special events related to the Arroyo Seco, the Los Angeles River,
the San Gabriel Mountains, and key environmental topics in our region.

Click on the date or title link for full details
Start Time
Event Summary
2014-01-1810:00am Hike To Hahamongna Join ASF Outreach Coordinator Tim Martinez on a hike to Devil’s Gate Dam, and view over the rich habitat of Hahamongna Watershed Park.
2014-01-1810:30 amTweed, Moxie and Mustaches RideTour by bike some of the historic places along the Arroyo Seco with C.I.C.L.E
2014-01-21Deadline for Comments on Devil's Gate Draft EIRToday is the closing deadline for comments regarding LA County Flood Control District's Devil's Gate Dam Sediment Removal and Management Program.

News of the Arroyo

Click on the title link to read the entire story.

Click on the title link to read the entire story
Colorado River Drought Forces a Painful Reckoning for StatesJanuary 6, 2014 - The New York Times features an ominous look at future supplies and reliability from the Colorado River.
Behind the battle to preserve LA's historic Lummis HomeJanuary 2, 2014 - How to save the Lummis Home? That's the question that Los Angeles and Arroyo Lovers are asking about El Alisal, the wonderful home of pioneer Charles Lummis on the banks of the Arroyo at Avenue 43.
City officials and local residents join forces against sediment removal plans for Devil’s Gate DamJanuary 2, 2014 - Local officials and residents are voicing strong objections to key elements of a Los Angeles County plan to remove massive quantities of sediment from behind Devil's Gate Dam in Hahamongna Watershed Park.
California drought deepens as another year's rains stay awayDecember 29, 2013 - California is dry, dry, dry. In the middle of winter, only scattered showers have blessed the parched state with much-needed rainfall.
Highland Park’s historic Lummis Home looking for a new tenantDecember 17, 2013 - El Alisal, the historic home of Charles Lummis, needs a new tenant. Los Angeles Recreation and Parks has put out a request for proposals seeking a non-profit to manage and operate the site on the banks of the Arroyo at Avenue 43.
Pasadena Officials Express Concern Over Devil's Gate ProposalDecember 17, 2013 - The Pasadena City Council took a tough stance last night in responding to LA County's Draft Environmental Impact Report for the Devil's Gate Sediment Removal and Management Program in Hahamongna Watershed park.
Letter: Sediment removal project too largeDecember 11, 2013 - Mary Barrie writes a letter to the La Canada Valley Sun expressing her concerns about the County's sediment removal program for Hahamongna.
Devil's Gate Dam sediment project isn't settling well for residentsDecember 4, 2013 - Local residents came to the La Cañada Flintridge City Council study session on the County's sediment program in Hahamongna Watershed Park and raised major concerns.
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Arroyo Seco Foundation
Los Angeles River Center, 570 W. Avenue 26 #450, Los Angeles, CA 90065-1011
PO Box 91622, Pasadena, CA 91109-1622
(323) 405-7326 | info@arroyoseco.org