We protect endangered, wild coho salmon and the forests and watersheds they need to survive in Marin County, California.

March 3, 2026

2025-26 Spawning Update

What We Do

SPAWN was initiated as part of Turtle Island Restoration Network in 1997. Each year, we engage hundreds of people to see and learn about the majestic endangered salmon, restore watershed habitat, raise native redwood trees, and study salmon health.

Sediment Load Reduction Project

April 16, 2025

Abandoned Redi-Mix Concrete Plant

November 16, 2021

Roy’s Pools Fish Passage and Floodplain Restoration Project

May 22, 2020

Research & Monitoring

December 5, 2018

Assist Landowners

November 27, 2018

Acquire Critical Land

November 27, 2018

Save California’s Coho Salmon

Save California’s Coho Salmon

November 16, 2018

Creekwalk Tours

November 14, 2018

10,000 Redwoods

November 9, 2018

Native Plant Nursery

November 9, 2018

Lagunitas Creek Floodplain & Riparian Restoration Project

April 18, 2018

Why It Matters

The population of Central California Coast coho salmon has declined more than 95 percent from historic levels, and are now listed as ‘endangered’ under the Federal Endangered Species Act. Running through Marin County, Lagunitas Creek Watershed is one of the most important waterways left for these wild coho salmon, supporting 10 to 20 percent of the surviving fish.

Our programs span the Lagunitas Creek Watershed—from the redwood valleys of Mt. Tamalpais to the coastal waters of Tomales Bay—and include projects to protect salmon, redwoods, and amphibans from a myriad of threats like dam-building, vegetation removal, urban encroachment and the threat of climate change from fossil fuel projects. Each gives the public a chance to get involved in our species-saving efforts.

What You Can Do

We need your help to ensure endangered salmon survive and thrive.

Join Our Network
Support Our Work
Become a Volunteer

Latest News

2025-26 Spawning Update

| 2026, California, Coho Salmon, Conservation, News, Salmon, Salmon Population Monitoring, Wildlife Monitoring | No Comments
By Sierra LeTourneau and John Weber Coho salmon inherently prefer to travel all the way up the watershed into tributaries, small head water streams to spawn. This can be difficult…

Chicken Ranch Beach: Wetland Enhancement Project Update

| 2026, Bay Area, California, Conservation, Habitat Restoration, Native Plant Resources, Salmon | No Comments
Article Written by Jessica Garces (SPAWN Intern) SPAWN has made incredible progress on the Chicken Ranch Beach Wetland Enhancement Project! Thanks to the hard work of SPAWN staff and interns,…

California Sportfishing Protection Alliance SPAWN Feature

| 2026, Bay Area, California, Conservation, Habitat Restoration, Headquarters, Human-Wildlife Conflicts, News, Nursery, Salmon | No Comments
In this in-depth article by Jessica Zimmer, published on SPAWN, you’ll learn how staff, volunteers, interns and partners are restoring floodplains, installing innovative woody debris structures, working with landowners and…