Our amazing planet.

Sure Sign of Spring: Snow Melts at Great Sand Dunes

national parks, colorado
(Image credit: U.S. Department of the Interior)

Snow is melting from the dunes at Great Sand Dunes National Park. That's a sure sign that spring is here. It's also the best time for one of the park's favorite pastimes: sandboarding.

Great Sand Dunes National Parkin southern Colorado is home to the tallest dunes in North America, spread over 30 square miles (78 square kilometers). The Sangre de Cristo Mountains loom in the background, but the dunes are the main attraction here. The dunefield was created over millions of years as the sediment from the nearby San Juan Mountains was deposited in lakes and rivers and then exposed, dried and blown away by the wind.

Latest Videos From
Brett Israel was a staff writer for Live Science with a focus on environmental issues. He holds a bachelor’s degree in biochemistry and molecular biology from The University of Georgia, a master’s degree in journalism from New York University, and has studied doctorate-level biochemistry at Emory University.