• Speleothems in Miller's Chapel.

    Oregon Caves

    National Monument Oregon

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  • Road Work, Expect Delays

    ODOT will be preparing highway 46 for asphalt patching. Please use caution when traveling between the monument and Grayback Campground. Various work will be from continue until July 31, 2014.

  • Watch for Wildlife

    Please be on the lookout for fawns on the section of Caves Highway around Caves Campground! There is at least one very young one that is using the pavement as his transportation corridor.

Park Fun

Bats eat bugs, they don't eat people.Bats eat bugs, they don't fly in your hair.

Bats Eat Bugs!

What do bats eat?

"Bats Eat Bugs," sung by Joel Barker. This is a 779 KB RealPlayer (sound) file. You will need to have a program called RealPlayer installed on your computer.

If you do not have the software to view this file, download it.

Did You Know?

Acid dew dissolves the cave wall to make small pock marks.

Carbon dioxide mixes with water that condenses on the wall of the cave to create a very weak acid. Over long periods of time this "acid dew" eats away at the marble walls of Oregon Caves making the cave larger.