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Standing here you are standing on a limestone layer of the Carmel formation, which formed in an ancient inland sea. The is was sea that covered the giant sand dunes that eventually turned to massive deposits of Navajo Sandstone. The formation is prevalent across the Colorado Plateau. Here at the San Rafael Swell, erosion has cut the Navajo Sandstone into great white monoliths, knobs, and canyons bearing names such as Ghost Rock, Locomotive Point, Joe and his Dog, Eagle Canyon, and Temple Mountain. A good eye can see how the rock layers dip slightly to the west. Eventually the monoliths will become knobs, the knobs will become mounds, and the mounds will succomb to erosion and disappear. The great cliff you now stand atop will also be worn away a grain at a time and “the hills will be made low.”

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