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San Geronimo

The Top 11 Natural Monuments around San Geronimo

San Geronimo’s landscape is a beautiful place to explore — something that you can best experience by visiting one of our 11

beautiful natural monuments around San Geronimo. To help you find the one for, you can see all the details you need to explore the best natural monuments, and better plan your next outdoor adventure!

Last updated: September 30, 2025

Mount Tamalpais summits 2,576 ft (785 m) by road bike 🚲

Mount Tamalpais is the highest peak in the Marin Hills, which are part of the Northern California Coast Ranges. The elevation at the West Peak, its highest point, where a …

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Pygmy (dwarf) sargent cypress forest (stunted growth on poor soils) along San Geronimo Ridge fire road ( komoot.com/highlight/198100 ) in Gary Giacomini Open Space Preserve ( marincountyparks.org/depts/pk/divisions/open-space/gary-giacomini ). Dwarf forest, …

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As the name implies, a big bolder marks the crest of Lucas Valley Road above Skywalker Ranch, the elusive retreat and production studios of George Lucas and his various film projects.

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Big Rock Trail cuts through Lucas Valley Open Space to reach the 2nd highest point in Marin County. From later winter through early summer the hills are verdant green and …

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The two Open Space Preserves meet in this valley of stately redwood trees that's refreshingly cool even in summer, which is welcome before or after the climbs that go both directions in and out of this valley.

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Extend your search for the best caves by checking out these guides of the top ones around San Geronimo:

TiburonSausalitoBelvedereMarin CityTamalpais-Homestead ValleyStrawberryMill ValleyAltoCorte MaderaMuir BeachStinson BeachSan RafaelLarkspurKentfieldFairfaxRossSan AnselmoBolinasLagunitas-Forest KnollsWoodacreSleepy HollowInvernessPoint Reyes StationLucas Valley-MarinwoodNicasioSanta VenetiaNovatoDillon Beach

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