United States of America
Skeleton Cave is a lava tube within Deschutes County, Oregon, of the United States. The cave is within Deschutes National Forest and is located on the northern flank of Newberry Volcano near the city of Bend. The cave is between 75,000 and 400,000 years old.
Listen to the audio guide for Skeleton Cave Free on WIP — starts by itself when you arrive, even with the screen off