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   Yellowstone Thermal Features Page last updated 8/20/2007  | 
 
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   There are no other places on earth with thermal features to match Yellowstone. Click on any picture on this page to get a larger picture with better resolution.  | 
 

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   Old Faithful. The most predictable large geyser and certainly the best known. It now erupts approximately every 90 minutes.    Before the 1959 earthquake, it erupted approximately every 60 minutes.  | 
 



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   Blue Star Pool    | 
 
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   Heart Spring  | 
 
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   Giant Geyser  | 
 
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   Morning Glory Spring  | 
 
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   Grotto Geyser  | 
 

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   Beauty Pool Two Views  Very aptly named.  | 
 
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   Beehive Geyser  | 
 

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   Castle Geyser  | 
 
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   Chinese Spring actually once used as a laundry.  | 
 


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   Riverside Geyser  | 
 
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   Runoff from Old Faithful  |