• 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.

Freedom Of Information Act

If you require information from Oregon Caves National Monument, the U.S. Freedom of Information Act (FOIA) ensures public access to U.S. government records. Upon written request, the monument is required to disclose those records, unless they can be lawfully withheld from disclosure due to exemptions in the FOIA. This right of access is ultimately enforceable in federal court.

If you desire information from Oregon Caves National Monument, contact the monument.

For more information on the Freedom of Information Act, visit:

United States Department of Justice, FOIA

Federal Bureau of Investigation, FOIA

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.