Main Loop Trail Stop 10

Main Loop Trail Stop 10
Volcanic Tuff cliff

NPS Photo by Stella Carroll

The cliff in front of you is volcanic tuff. Look closely and you will see how erosion affects this very soft rock. Exposed dwellings composed of tuff blocks are similarly eroded by the elements. The tuff is easily impacted by our presence so remember to stay on the trail and only enter the caves that have ladders.

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Last updated: February 24, 2015

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