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.
Crews are removing brush along highway 46 beginning in the lower parking lot and moving down the highway. Work is scheduled to last until April 20, 2014; expect delays.
Annual Monument Visitation
For more complete statistics, visit www.2nature.nps.gov.stats.
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.