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Photos 41 - 45 of 180

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Mammoth is situated close to the north entrance in Yellowstone National Park. It is a hill of travertine (a form a limestone) that has been created over thousands of years from hot water that cooled and deposited calcium carbonate. The unique, "lunar" landscape changes constantly from new deposits and changes in temperature. As formations grow, water flows in different directions. The blue, green and orange colors are from algae and bacteria that like the hot water.
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Comments on this photo:

Jul 13 2009 07:31 GMT kutlu01
very nice
Jul 13 2009 13:49 GMT cdc PRO
amasing series
Jul 15 2009 07:12 GMT PaP67
this unique " lunar " landscape serie is very interesting in the whole senses of the term !
Jul 17 2009 11:55 GMT Minz PRO
Such a fantastic place - Wonderful to see !
Jul 20 2009 06:30 GMT billybob41
What a fantastic place to photograph..lovely shot.