• Speleothems in Miller's Chapel.

    Oregon Caves

    National Monument Oregon

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  • Cave Tours Closed for Season

    Cave Tours are closed for the winter. Tours will resume April 26, 2014. All trails on the monument remain open.

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Did You Know?

A grylloblattid crawling over ice.

The grylloblattid, one of the half-dozen endemics found at Oregon Caves, contains anti-freeze properties in its blood to prevent freezing! Photo credit courtesy of Piotr Naskrecki.