Indian Tunnel in Craters of the Moon National Monument,
Photo by Jay Wilbur
Example Lava Natural Arch
NABSQNO 12T-295270-4813055. Indian Tunnel is a large lava tube whose roof has collapsed in several places creating a series of lava natural arches. It is one of the major attractions of Craters of the Moon National Monument southwest of Arco, Idaho. It is reached via a short, well-marked trail from the Caves parking area in the monument.
Other Lava Natural Arch examples:
© 2003 by Jay H. Wilbur,
All Rights Reserved.