Folding of the Tapeats Sandstone exposed in the eastern wall of Monument Canyon’s inner gorge is associated with up-to-the-northeast displacement on the Monument Fault, most recently, a reverse fault associated with Laramide compressional tectonics; (A) shows the folding in the Tapeats sandstones from the large group campsite in Monument Canyon, (B) shows the folded rocks nearly parallel to the fold axis from the base of the Tapeats cliff.