Discover the "Marble Halls of Oregon"
Nestled deep inside the Siskiyou Mountains, the caves formed as rainwater from the ancient forest above dissolved the surrounding marble and created one of the world's few marble caves. The highly complex geology found on the Monument contributes to the unusual and rare plants and animals found nowhere else but here. Experience the extensively decorated and adventurous "Marble Halls of Oregon."
Features
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Visit Oregon Caves This Season!
Cave tours are seasonal and are considered moderately strenuous. Children must be 42 inches tall to go on a cave tour.
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Avoid spreading the fungus that causes white-nose
Plan ahead and do not to bring any items that have been worn or used in any cave or mine east of the Rocky Mountains since 2005, or in Europe.
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Lodging at Oregon Caves National Monument
Stay overnight or dine at the Historic Oregon Caves Chateau, built in the 1930's during the Great Depression.
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Hike through ancient forests
Explore the four hiking trails. The Monument's 480 acres contain endemic Port Orford cedar and one of the largest Douglas-fir trees in Oregon.
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View our Webcams
Visit the Oregon Caves Visitor Center webcam as well as, the "bat cam" that offers a glimpse of bats hibernating in the cave.
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Off-Trail Adventure
Get muddy and explore the wondrous wild areas of Oregon Caves National Monument off-trail!
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Did You Know?
![A small cave located near the visitor center. A small cave located near the visitor center.](https://webarchive.library.unt.edu/web/20120928164926im_/http://www.nps.gov/pwr/images/ORCA_ORCA_cave%20near%20visitor%20center.gif)
The marble rocks of Oregon Caves were once a tropical reef that was pushed under the continental edge to a depth of 12 miles and then uplifted to 4,000 feet above sea level.