rock formation and desert brush, arches national park moab utah

additional arches are balanced basin bed brush cause colorado conditions cover covered cretaceous debris deposited desert developed during entrada eroded evaporite exist exposures fins flowed formation including jurassic layer main mancos millions moab monoliths national navajo northeast paradox park plateau prevailed region remnants rock rocks salt sandstone sea sediments sequence shale spires stream thick thousands uncompahgre underground uplift utah vast windblown within younger