South Dakota School of Mines 



Bulletin No. 9. Plate No. 8. 



Photograph by O'Harra, 1S99. 



Figure 1. General view of Titanotherium Beds, Valley of Indian Creek. 



Photograph by O'Harra, 1909. 



Figure 2. Erosion detail of Titanotherium Beds near Big Foot Pass. 



