PointofInterestRoadSigns.com - Yellowstone National Park - Orange Spring Mound 


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 Welcome to Point of Interest Road Signs! A collection of photos of road and trail signs.  Click here for more Wyoming Signs


Yellowstone National Park - Orange Spring Mound


Location of sign - Upper Terrace Drive - Mammoth Hot Springs area at Yellowstone National Park.


Photo taken June 2008

Orange Spring Mound, Orange Spring Mound road sign, Yellowstone Orange Spring Mound  

Close-up view of sign


Orange Spring Mound, Orange Spring Mound road sign, Yellowstone Orange Spring Mound

Wide view of sign


Text of sign:


Orange Spring Mound


Hot water flows over the mound after bubbling through several vents along the tops.


Heat dwelling bacteria and algae grow abundantly in Orange Spring Mound's water creating tapestries of "living color."


3  Above the ground, the water begins to cool and evaporate.  Gases are released and water pressure decreases.  Orange Spring

    Mound gradually grows as water flows over it, depositing calcium carbonate, or travertine.


2  Under great pressure, the water percolates upward through buried limestone, dissolving a mineral called calcium carbonate.


1  Yellowstone's volcano heats water deep underground.


Graphics on the sign


In addition to the text there are several pictures of Orange Spring Mound including diagrams explaining the underground water 

systems that created it.


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