Mammoth Rubbing Rocks
Parking available
Massive prehistoric mammals used these blueschist stones as oversized scratching posts in Sonoma County, California.

📜 Blueschist rocks in Sonoma County, California, with smooth, shiny patches.
🔍 Scientists believe these were used as scratching posts by Columbian mammoths. Patches are 10-14 feet above ground, consistent with mammoth shoulder height.

Why Go

🐘 Witness evidence of prehistoric megafauna
🧗 Popular with climbers for jagged sides
🚶 Explore Kortum Trail to the rocks
🏞️ Enjoy a vast prairie landscape

Getting There

🗺️ Search Google Maps for 'Sunset Boulders'.
🚗 Turn west from Route 1 onto Goat Rock Road; look for pull-offs.
🚶‍♂️ Follow Kortum Trail from pull-offs to the rocks.

Last updated 1 day ago

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