Home > hiking, Traveling > Great Sand Dunes, Colorado

Great Sand Dunes, Colorado


Today our adventure took us to the Great Sand Dunes, about 25 miles from where we are parked in Alamosa, Colorado. It was quite a spectacular trip, seeing all this sand in the middle of the valley, and surrounded by mountains. We had a nice hike, climbing high in the hills to get a spectacular views of the dunes.

The dunes were formed from sand and soil deposits of the Rio Grande and its tributaries, flowing through the San Luis Valley. Over the ages, glaciers feeding the river and the vast lake that existed upon the valley melted, and the waters evaporated. Westerly winds picked up sand particles from the lake and river flood plain. As the wind lost power before crossing the Sangre de Cristo Range, the sand was deposited on the east edge of the valley. This process continues, and the dunes are slowly growing. The wind changes the shape of the dunes daily.

One of the many 14,000 ft high mountains along the way.

One of the many 14,000 ft high mountains along the way.

A view of the dunes with some of the mountains

A view of the dunes with some of the mountains

Here you can see one of the rivers that feed the dunes

Here you can see one of the rivers that feed the dunes

A little posing along the way

A little posing along the way

Looking back from the top of the Lookout hike

Looking back from the top of the Lookout hike

Many people cross the rive to hike in the dunes

Many people cross the river to hike in the dunes

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