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Dirk S. Grossmann
Home Photography USA 2012 Yellowstone National Park Lake Yellowstone Heyden Valley
 Group Mud Volcano Area            Heyden Valley            Group South Yellowstone   
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Heyden Valley
Heyden Valley
  
Wolf
Wolf
  
Beaver
Beaver
  
 Group Mud Volcano Area     Group South Yellowstone  © 2012 Dirk S. Grossmann