STUMP FORMATION--Glauconitic siltstone, sandstone, and limestone.  Jst
ELLIS GROUP.  KJk
  Swift Formation--Calcareous glauconitic sandstone and sandy limestone.  KJk
  Rierdon Formation--Mudstone, siltstone, shale, and basal limestone.  KJk 
  Sawtooth Formation--Red beds and limestone.  KJk
SUNDANCE FORMATION--Greenish-gray glauconitic sandstone and shale, underlain by
     red and gray nonglauconitic sandstone and shale.  KJs, KJg, K@, Js, Jsg, J@,
     MzPz