Colestin Formation (late Eocene?
TisRhyolite and dacite intrusions (late and middle Eocene) TibDiabase and basalt intrusions (late and middle Eocene) TiaAndesite dikes and sills (late and middle Eocene) TesSpencer Formation (late and middle Eocene) TebBateman Formation (late and middle Eocene) TebmBateman Formation mudstone (late and middle Eocene) TeeElkton Formation mudstone (middle Eocene) TtbsTyee Formation, Baughman Member (middle Eocene) TtbmTyee Formation, Baughman Member mudstone (middle and early Eocene) TthTyee Formation, Hubbard Creek Member (middle and early Eocene) TthsTyee Formation, Hubbard Creek Member sandstone (middle Eocene) TttsTyee Formation, Tyee Mountain Member (middle and early Eocene) TttmTyee Formation, Tyee Mountain Member mudstone (middle and early Eocene) TcvCamas Valley Formation (early Eocene) TwWhite Tail Ridge Formation, undivided (early Eocene) TwrcWhite Tail Ridge Formation, Rasler Creek tongue (early Eocene) TwcWhite Tail Ridge Formation, Coquille River Member (early Eocene) TwrWhit