What's New

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What's New

Volunteers at Work

Invasive Plant Patrol

Wed, Dec 10, 2025, 10:00am - 2:30pm

Kirby Cove Gate

Hiking with a mission – help find and remove new infestations of invasive weeds while exploring the parks.

Registration Required

Volunteers at Work

Invasive Plant Patrol

Wed, Dec 3, 2025, 10:00am - 2:30pm

Battery Alexander Trailhead and Parking Lot

Hiking with a mission – help find and remove new infestations of invasive weeds while exploring the parks.

Registration Required

Volunteers at Work

Invasive Plant Patrol

Wed, Nov 26, 2025, 10:00am - 2:30pm

Homestead Valley - Fire Road Gate on Panoramic Hwy

Hiking with a mission – help find and remove new infestations of invasive weeds while exploring the parks.

Registration Required

A participant gives a big smile during Presidio Planting Day

Presidio Planting Day 2025

Sat, Dec 6, 2025, 9:00am - 12:00pm

Help us kick-off planting season in the Presidio of San Francisco!

Register Now

Low clouds cloak the Marin Headlands

An Enduring Legacy: Martha Gerbode and the GGNRA

Learn about San Francisco philanthropist and civic leader Martha Gerbode, who used her wealth and influence to back bold conservation efforts—including the preservation of the Marin Headlands and Alcatraz Island. “Don’t bring me any projects that other people would fund. I just want the tough, controversial ones."

Orange, black and white monarch butterfly seen landing on purple milkweed flowers.

Planting for Monarchs: Joske Grove

Sat, Dec 13, 2025, 10:00am - 2:00pm

Mt. Burdell Preserve

Join us in a community planting day to enhance monarch habitat in Marin County!

Registration Required

What's New

Freshwater Aquatic Plant Ecology

Fri, Aug 11, 2017, 1:00 - 4:00pm

Good Fire Day: The Role of Fire in Ecosystem Health & Climate Resilience

Thu, Nov 16, 2017, 10:00am - 4:00pm

Hawk Identification Field Class

Fri, Sep 22, 2017, 11:00am - 1:00pm

Healing Forest Walk

Sat, Oct 28, 2017, 8:00 - 10:00am

How and Why We Control Invasives in the Park - Talk and Field Workshop!

Thu, Mar 23, 2017, 1:00 - 4:30pm

Introduction to Garden Maintenance

Thu, Aug 24, 2017, 9:30am - 12:30pm

John Muir Laws: Color Gets All the Credit; Value Does All the Work!

Tue, Dec 12, 2017, 1:30 - 3:00pm

John Muir Laws: Color Theory that Works

Tue, Mar 14, 2017, 12:30 - 2:00pm

John Muir Laws: Drawing Birds - Getting the Details

Tue, Sep 12, 2017, 12:30 - 2:00pm

John Muir Laws: Drawing Mammal Heads & Faces

Tue, May 9, 2017, 12:30 - 2:00pm

John Muir Laws: Drawing Mammals - The Final Details

Tue, Jun 13, 2017, 12:30 - 2:00pm

John Muir Laws: Fast Notes & Quick Sketching with Mark Simmons

Tue, Nov 14, 2017, 1:30 - 3:00pm

John Muir Laws: How To Draw Marine Mammals

Tue, Oct 10, 2017, 12:30 - 2:00pm

John Muir Laws: How to Lead Nature Journaling Activities for Teachers and Group Leaders

Tue, Feb 14, 2017, 1:30 - 3:00pm

John Muir Laws: Intentional Curiosity

Tue, Jul 11, 2017, 12:30 - 2:00pm

John Muir Laws: Songbird Sketching

Tue, Aug 8, 2017, 12:30 - 2:00pm

John Muir Laws: The Five Minute Landscape

Tue, Jan 10, 2017, 1:30 - 3:00pm

Nursery Series: Growing Plants from Cuttings

Tue, Mar 28, 2017, 1:00 - 4:00pm

Nursery Series: Introduction to Seed Collection & Cleaning

Thu, Jun 8, 2017, 1:00 - 4:00pm

Nursery Series: Seed Treatment and Germination

Thu, Mar 9, 2017, 2:00 - 5:30pm

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