Crater Lake National Park, Oregon

Llao Rock

This rhyodacite dome is located on the northwest rim of the caldera.
A thick layer of pumice and volcanic ash from the caldera-forming eruption covers the upper surface of Llao Rock.


Llao Rock, dacite dome, July 2, 2004

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LCC Crater Lake Image #3 07-09-04
Image by David Cordero
dcordero@lcc.ctc.edu