Smithsonian Report, 1897— Oilier. 



Plate VIII. 



Fig. 8.— Glaciated Crest of Riivi of Crater Lake. 

 From a photograph by M. M. Hazeltine. 



Mt Mazama. 



Fig. 9.— Section of Crater Lake and Its Rim, with the Probable Outline 

 OF Mount Mazama. Structural Details Generalized. 



Vertical and horizontal scales the same. 



