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
Mt. Tam Sunday Hike at Quarry Parking Lot #6 Trailhead - Hosted by Friends of Mt. Tam
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Mt. Tam Sunday Hike at Rock Spring #4 Trailhead - Hosted by Friends of Mt. Tam
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Mt. Tam Sunday Hike at Rock Spring #4 Trailhead - Hosted by Friends of Mt. Tam
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Mt. Tam Sunday Hike at Rock Spring Trailhead - Hosted by Friends of Mt. Tam
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Mt. Tam Trail Crew at Brighten Shadyside Trail - Hosted by MMWD
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Mt. Tam Trail Crew: Nora Trail - Hosted by MMWD
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Mt. Tam Turtle Observer Training - Hosted by MMWD
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Mt. Tam West Peak Hike - Hydrology of West Peak
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Mt. Tam West Peak Hike - Led by Gary Yost and Matt Cerkel
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Mt. Tam West Peak Hike - Opportunities for Restoration
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Barred owl in Muir Woods National Monument
Muir Woods After Hours
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National Park Week Fee Free Weekend
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Visitors at the Nike Missile Site
Nike Missile Site Open House
Visitors at the Nike Missile Site
Nike Missile Site Veteran Open House
Nike Missile Site Volunteer/Veteran Open House
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Nike Missile Site: Behind the Scenes
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Drummer at "Inuksuit" outdoor concert
"Inuksuit" Performed by SFJAZZ
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2017 Mt. Tam Wildlife Symposium
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Juana Briones
African Californios
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Bat Mist Netting at Muir Woods
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