If you cannot visit the Monument experience it through multimedia, or if you would like a preview of the cave, look through our photo gallery.
Depictions of a Cave Tour Oh the wonders you'll discover inside the earth! more...
Did You Know?
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.