What's New

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What's New
Volunteers at Work
Invasive Plant Patrol
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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
-

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
-

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

Registration Required
What's New
Coho salmon release
Article
Happy t[r]ails to the coho salmon of Redwood and Olema Creeks!
Clarkia rubicunda, also known as Farewell to Spring.
Article
This wildflower means farewell to spring, hello to summer
From left, San Mateo Park Stewardship intern Laurasia Holzman Smith, Community Programs Manager Georgia Vasey, and intern Samuel Peña.
Article
Lessons learned from stewarding the Golden Gate National Parks
Pride in Your Parks, Park Stewardship San Francisco
Pride in Your Parks!
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Volunteer working with soil in the Golden Gate National Parks.
Article
Soil and trouble: Time to consider this overlooked conservation concern
Barred owl in Muir Woods National Monument
Owl Wars
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Image of the interior of Fort Point with the lighthouse
Tour of Fort Point
Participants at the Future IDs at Alcatraz 'Day of Public Programs' on Feb. 16, 2019, at the New Industries Building on Alcatraz Island.
Future IDs at Alcatraz Release Party
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Volunteers at Crissy Field
Summer Beach Series: Stinson Beach
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Alcatraz Waterbirds Tour
Alcatraz Waterbirds Tour
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Habitat Restoration: Thistle be Fun - Hosted by California State Parks and One Tam
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One Tam Member Hike: The Hidden Waters of Mt. Tam; a tour of the hydro-ecology and history of springs on Mt. Tam
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Habitat Restoration: Thistle be Fun - Hosted by California State Parks and One Tam (CANCELED)
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Box steps challenge hikers along the Batteries to Bluffs Trail
Gateways Article
Hit the Trail: How to find dolphins, digger bees on the western edge of the Presidio
GGRO Cap
GGRO Cap

Features the official GGRO logo!

Buy now!
GGRO Turkey Vulture Shirt
GGRO Turkey Vulture Shirt

Show your support for community science!

Buy now!
GGRO Sweatshirt
GGRO Sweatshirt

Wear your raptor-love with pride!

Buy now!
Image of the front of the Presidio Visitor Center with the Golden Gate Bridge in the backgrounr
For Members: Presidio Tunnel Tops Preview
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Fort Funston
For Members: Fort Funston Exploration
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Field Station and Outpost Prototyping Pop Up
For Members: Presidio Tunnel Tops Pop Up - Canceled
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