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The tallest dunes in North America are up to 750 feet tall and neighbor grasslands, shrublands and wetlands. They were formed by sand deposits of the Rio Grande on the San Luis Valley, and the park also has alpine lakes, six 13,000-foot mountains, and ancient forests.

I took my forestry senior students on this hike to talk about erosion, deposition, saltation, etc. excellent walk.

hiking
5 days ago

This is a harder hike than lead on to believe. Pack lots of water, snacks, and layers.

Challenging hike, this was my first (and so far only) sand hike, and man, I wasn't prepared. But it was incredibly rewarding when finished, and getting down is so much closer quicker than going up. Went at sunset in December, and the spectacle was amazing and definitely worth the climb. Will be back to this area of Colorado, for sure.

hiking
27 days ago

Amazing experience! Quite the challenge too! Spectacular views worth every bit of effort.

hiking
27 days ago

Beautiful Trail into the Mountains offering views of the dunes and some spectacular mountain meadows.

backpacking
1 month ago

hiking
1 month ago

1 month ago

Great trail. Beautiful views.

hiking
1 month ago

A nice easy in and out

hiking
1 month ago

backpacking
1 month ago

hiking
1 month ago

Nice hike through forest. Follows a stream for most of the way. Some nice views.

hiking
1 month ago

There isn't really a trail to follow since the sand is constantly moving with the wind. We made it to the top of the highest sand dune and the views were just incredible! If you ever can make it out to here I highly recommend you do because the beauty of this landscape is like no other!

Long sandy hike. Beautiful views.

hiking
2 months ago

Hiked this with my 7 year old. Sand makes it slow going but well worth the views.