Ranger Sarah learns more about the dunes. She learned that the north-south-trending Sevier fault cuts through the length of the park. The fault trace is marked by a west-facing bedrock escarpment that divides the park into two topographic units and acts as a major control over the accumulation of sand within the dune field.
— Coral Pink Sand Dunes State Park.
Ranger Sarah learns that three factors are necessary to make these sand dunes. The dunes are formed from the erosion of pink-colored Navajo Sandstone surrounding the park. High winds passing through the notch between the Moquith and Moccasin Mountains pick up loose sand particles and then drop them onto the dunes as a result of the Venturi effect.
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