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Making America's Best Idea Even Better
Oregon Caves National MonumentHiking Oregon Caves trails.
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Oregon Caves National Monument
Things To Do
Listen to our many Ranger Programs offered during the summer.

NPS

Listen to our programs about the natural resources of the monument.

  • Tour a marble cave (no self-guided tours).
  • Explore or stay in a National Historic Landmark, Oregon Caves Chateau.
  • Discover the four hiking trails through the ancient forests on the monument.
  • Participate in Ranger Programs and understand more about wildlife and plants on the monument.
  • Earn a Junior Ranger Badge and help protect and preserve the monument.
Acid dew dissolves the cave wall to make small pock marks.  

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.

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Last Updated: March 21, 2008 at 20:53 EST