46 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 



few fossils found west of Parson and Donald and heretofore regarded 

 as of Upper Cambrian age, came from the limestones interbedded in 

 the lower Mons shales. The Upper Cambrian is presumably repre- 



FiG. 10. — Sketch of plicated shales and thin interbedded limestones in cliff 

 near mouth of Canj-on Creek canyon. 



sented by the massive semi-crystalline magnesian limestones that 

 occur beneath the Mons at Sabine Mountain, Fairmount Hot Springs, 

 Stoddart Creek, and east of the Radium Hot Springs in Sinclair Can- 



FiG. II. — Enlarged sketch of plications near those shown by fig. lo. 



yon. No fossils have been found in this lower limestone that cor- 

 responds in stratigraphic position to the massive Upper Cambrian 

 Lyell limestone of the Glacier Lake and Clearwater sections. The 



