We help our neighbors repair eroding creek banks, remove invasive non-native species, and replace them with plants from our Native Plant Nursery grown by our volunteers.

Local landowners play a key role in protecting our endangered salmon and maintaining the beauty of our local creeks. SPAWN provides technical consulting on erosion control and habitat improvement projects for streamside residents in the San Geronimo Valley.

Past projects have helped local landowners maintain dirt roads that were distributing unnecessary amounts of dirt into our streams, design environmentally friendly erosion controls and restore creek banks with natural materials. If you are interested in taking up this opportunity please contact Preston Brown, Director of Watershed Conservation, at preston@seaturtles.org.

SPAWN also responds to many calls from concerned citizens about problems or emergencies that impact our streams and rivers. Our staff and volunteers respond to these calls and help refer problems to the appropriate agencies if necessary or find ways to prevent or repair the problem. Learn more here.

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Updates

Coho Salmon Show Signs of Recovery in San Geronimo Valley

| 2026, California, Coho Salmon, Conservation, Habitat Restoration & Landowner Assistance, Salmon, Salmon Population Monitoring, Wildlife Monitoring | No Comments
Coho Salmon Show Signs of Recovery in San Geronimo Valley Tributaries — But the Fight Isn't Over For a species teetering on the edge of extinction, every fish counts. That's…

From Seed to Forest: Mapping the Journey of 10,000 Redwoods

| 10,000 Redwoods, 2026, Bay Area, California, Conservation, Endangered/Threatened Species, Habitat Restoration, Human-Wildlife Conflicts, Redwood Resources, Redwoods, Salmon | No Comments
Written by Dinah Sandoval and GIS maps and illustrations by Alex Novoa. Imagine opening an interactive map and watching it populate with individual trees, to a grove and as the…

Introducing a New Chapter for the 10,000 Redwoods Program

| 10,000 Redwoods, 2026, Action Center, Bay Area, California, Conservation, Habitat Restoration, Redwood Resources, Redwoods, Salmon | No Comments
This year marks an exciting new chapter for Turtle Island Restoration Network’s (TIRN) 10,000 Redwoods Program. With renewed capacity and a long-term vision, we have an opportunity to build on…