Alpenglow on Dunes and Mount Herard from San Luis Lake
NPS/Patrick Myers 2016
Medano Creek is sometimes called "The Disappearing River" because it sinks into the sand at the end of the dunes. But that water is not lost - it emerges again as springs, wetlands and lakes west of the dunefield. The entire hydrological system of the dunes, from alpine snowfields to wetlands, is protected in Great Sand Dunes National Park and Preserve and neighboring lands including San Luis State Park and Wildlife Area.
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