English Cutler Formation Cited by user Kent G. Budge on 16 Feb 2022 The Cutler Formation or Cutler Group is a rock unit that is exposed across the U.S. states of Arizona, northwest New Mexico, southeast Utah and southwest Colorado.
English Halgaito Shale Cited by user Trilotat on 30 Sep 2018 The Halgaito Shale is the basal Permian geologic member of the Cutler Group in southern Utah.