• A group opportunity. Invite your friends.
  • 495 people are interested

Arroyo Seco Stream Team

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ORGANIZATION: Arroyo Seco Alliance

  • A group opportunity. Invite your friends.
  • 495 people are interested

Here's a great way to get involved in Los Angeles River protection and restoration efforts. Become an active part of the Arroyo Seco Stream Team. We are working to restore steelhead and other native fish to the LA River and the Arroyo Seco watershed.

The Arroyo Seco, a major watershed in Pasadena, La Canada, Altadena and Northeast Los Angeles, has received awards for a dynamic approach to watershed management and river restoration. We've even restored native fish to the stream near the Rose Bowl!

After training, Arroyo Seco Stream Team members can get involved in projects such as water quality sampling, mapping habitat, exotic pest plants and other stream conditions, cleanups of trash, debris and invasive plants, or working in our native plant nursery.

The Stream Team will also serve as watershed ambassadors, educating stakeholders and the general public about their watershed, a key tributary of the Los Angeles River, and how to be good stewards.

  • Cleanups
  • Watershed Assessment
  • Habitat Mapping
  • Exotic Pest Species Eradication
  • Water Quality Monitoring
  • Nursery Tending
  • Advocacy and Policy

The Arroyo Seco Stream Team meets regularly to discuss projects and activities. Members are expected to make a time commitment of at least 4 hours a month and to participate in and lead Stream Team activities. Activities take place in the Arroyo Seco, which extends from the Angeles National Forest in the San Gabriel Mountains through the communities of Pasadena, La Canada Flintridge, Altadena, South Pasadena and Northeast Los Angeles to downtown Los Angeles.

More opportunities with Arroyo Seco Alliance

No additional volunteer opportunities at this time.

About Arroyo Seco Alliance


PO Box 91622, Pasadena, CA 91109, US

Mission Statement

The mission of the Arroyo Seco Alliance is to preserve and enhance the Arroyo Seco from the San Gabriel Mountains to the Los Angeles River, reforest our region, and promote environmental and cultural awareness of one of Southern California's greatest natural resources.


The Arroyo Seco Alliance (ASA) is dedicated to protecting and promoting the Arroyo Seco watershed. ASA advocates an integrated, harmonious approach to watershed and flood management, water conservation, habitat enhancement as well as the expansion of recreational opportunities. Through action projects, recreation, and environmental awareness activities, ASA strives to involve the residents and organizations in our region in this tremendous enterprise. ASA works to reforest the Arroyo Seco, the San Gabriel Mountains, and the neighboring urban landscape with native shrubs and trees.

The activities of the Arroyo Seco Alliance enable local residents and businesses to become directly involved in the restoration of the Arroyo Seco and in the recreational and environmental opportunities available

Major Projects include:

  • Arroyo Seco Watershed Restoration -- This comprehensive approach to mountain and urban watershed management is a partnership of ASA and the many organizations of the Council of Arroyo Seco Organizations (CASO).
  • Tours and Educational Events -- ASA offers a variety of types of tours of the Arroyo Seco and a series of educational programs about the habitat, culture and history of the Arroyo Seco.
  • Native Plant Transformation - ASA promotes, grows, and cares for native trees and plants.

For more information or to get involved, please contact us.


Animals, Community, Environment


We'll work with your schedule.


Various Sites in the Arroyo SecoPasadena, CA 91105



  • Environmental Education
  • Environmental Policy
  • Habitat Restoration
  • Horticulture
  • Environmental Science


  • Kids
  • Teens
  • People 55+
  • Group



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