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Mount Herard at Great Sand Dunes National Park & Preserve in Colorado is climbed less often than it's higher neighbors to the north - the Crestone Group, perhaps due to a 10 mile round trip with over 3,700 feet of elevation gain, according to SummitPost. When you make it to the top though, you will be awarded by the outstanding vistas of the dunes and the Sangre de Cristo Range. It’ll feel as if the entire state is unfolding beneath you.