V. Geological and
Biological Information on Crater Lake Area
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E. Points of Geological Interest
in Crater Lake National Park
21. Llao's
Hallway
This 125-foot-deep gorge was cut
through pumice material by stream erosion. It is located on Whitehorse Creek, a
tributary of Castle Creek and once contained a trail leading through narrow
passages to numerous cave-like amphitheaters.
