Hoback Cafion Ridge. 
Hoback. Peak . Sta.VM. Sta. VI. 
Er SE (mag) 
ee . VD. Salt hiv Ridge. 
Cartore of East Kork John Day River: 
ASS BE Se Se SS : 
Wyoming Mountains. Krom Stattorn VM (John Day) Ridge. 
a. Carbontterous 6. Trtas. ce. Jura. a.Laramite, e. Tertiary ? “fF Wasatch Tertiary. 
Sta.X. Caribou Mtr. Snake liver Mountatns _ Teton Pass. Téton Mts. 
Salt Riv.Ridge. John Day Canon. Sta.Xxl. rard Cariorn of Snake Rtver: v John Day ktdge. 
Wimagq) aE 
——s = ZB 
: Ce ee ee P ? 
Snake hiver and Wigieuaced Mountatrs. a. VIM (John Day/ridge. : 
bd. Jura-Treoes. c.Laramte. < a. Tertiary. 
Plate VII. 
