description Skeleton Cave (Oregon) Overview
Located within the Newberry National Volcanic Monument in Oregon, Skeleton Cave is a substantial lava tube formed by ancient basaltic lava flows. Discovered in 1924, the cave earned its name from the large quantities of animal bones discovered inside, including remains of prehistoric animals. The mile-long tube features a large main passage characterized by volcanic rock and basaltic formations. To protect sensitive bat populations from white-nose syndrome, the cave's seasonal closures and access permits are heavily managed by the US Forest Service.
help Skeleton Cave (Oregon) FAQ
Where is Skeleton Cave in Oregon?
Skeleton Cave is on the northern flank of Newberry Volcano in central Oregon, within the Newberry National Volcanic Monument area near Bend. It is a basaltic lava tube, not a limestone cave.
Why is it called Skeleton Cave?
The name refers to the large quantities of animal bones found inside, including prehistoric remains. The cave was documented in 1924, giving it a recorded history as well as its volcanic one.
How did Skeleton Cave form?
Ancient basaltic lava flowed from the Newberry volcanic system, cooled at the surface, and left a hollow passage as hotter lava drained away. That process produced the long, dark tube associated with Newberry Volcano.
Is Skeleton Cave suitable for casual sightseeing?
It is a natural lava tube with uneven basalt, darkness, and possible low sections, so visitors should plan for real cave conditions rather than a paved attraction. A helmet, reliable light, and sturdy footwear are more important than the cave's 1924 discovery date.
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