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The MAB Program United States of America

 

 

Biosphere Reserve Conservation ActivitiesRhyodacite lava flow near Sparks Lake. South of South Sister. Photo by Steve Mattox, August 1987.

Three Sisters

 

 

Middle Sister taken from the Obsididan Area. Photo by Kraig Lindelin.

 

 

 

 

 

Three Sisters. Photo by Sonja Weber.</span>

Text Box: Research and Monitoring 
 
Vegetation
Geology

Last updated: 06/27/2005

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