Snow in the Dunes

Great Sand Dune National MonumentSnow clings to the ridges and fills in the valleys between the dunes of the Great Sand Dunes National Monument in the San Luis Valley. As the dunes’ ripples are accentuated by the snowfall, we are reminded of their origins as the sands were deposited in flooded valley as the glaciers retreated out of sight beyond the limits of the Sangre de Cristo Mountains.

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