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Great Sand Dunes National Park and Preserve
Nature & Science
 
Aerial of Dunes and Sand Sheet
NPS Photo
Aerial view of Great Sand Dunes

How were the Great Sand Dunes formed? The most common question asked in the park is answered in understandable language, and in light of the most recent research.

 

 
Great Sand Dunes Tiger Beetle
NPS Photo by Phyllis Pineda Bovin
The Great Sand Dunes Tiger Beetle is one of at least seven insect species endemic only to Great Sand Dunes.
Great Sand Dunes National Park and Preserve is one of the most biologically and geologically diverse parks in the United States.  An active research program is ongoing.  Please visit our feature pages on nature and science at Great Sand Dunes.
Out of the Blue
Out of the Blue
An on-line curriculum resource for K-12th grade teachers and students
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Surge flow, Medano Creek  

Did You Know?
Medano Creek, flowing at the base of Great Sand Dunes, is one of the few and best places in the world to experience "surge flow", where creek water comes in rhythmic waves.
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Last Updated: July 18, 2007 at 19:39 EST