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USA 2012
Yellowstone National Park
Norris
Norris Geyser Basin
Back Basin
Group
Porcelain Basin
Back Basin
Group
Mammoth Hot Springs
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or click the thumbnails for the large photos
Back Basin
Emerald Spring
Steamboat Geyser
Group
Porcelain Basin
Group
Mammoth Hot Springs
© 2012 Dirk S. Grossmann