Valley of the Goblins, Photo Gallery, Goblin Valley, Utah
Valley of the Goblins
170 million years ago Goblin Valley was a tidal flat between an inland sea to the north, and continental mountains and hills to the west. Eroded debris from these highlands was deposited by the ebb and flow of the sea, and compressed into alternating layers of sandstone, siltstone, and shale. Asymmetrical erosion produced spherical-shaped goblins through a process called spheroidal weathering.
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