• 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.

  • Slick Roads

    Due to recent road work on Hwy 46 and steady rain, the road is muddy in spots. Exercise extreme caution while driving to and from the Monument.

Geology

Geology can be a complex and confusing subject, even for trained geologists. As with many sciences, geology has a lot of befuddling lingo and jargon, but without some sort of guide with which to describe what we observe, interpretation is impossible. We hope you can use our website as a guide to learn more about Oregon Caves before or after you visit. Lets discover some of the "unusual scientific interest and importance" of the Oregon Caves.

Did You Know?

Dragonfly-DYK

Dragonflies and damselflies are ancient creatures that have lived on Earth far longer than mammals. They have sophisticated eyes, over twenty to thirty thousand per head. Dragonflies are fast fliers; the blue-eyed darner can fly 48 feet per second while chasing prey. Most can fly far, even able to survive crossing a sea or ocean, if they have to.