220 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 75 



might become a synonym of Glenogle, unless there should be two 

 distinct faunas in the Sinclair division of the Sinclair Canyon section, 

 in which event both the names Glenogle and Sinclair would be 

 retained. 



The more recent studies (1925) of Mr. J. F. Walker in the Winder- 

 mere map area prove conclusively that the Glenogle graptolite fauna 

 extends throughout the upper arenaceous beds and the lower black 

 shales and argillaceous layers at the head of Windermere Creek ' that 

 correspond to the Sinclair formation of Walcott. This makes the 

 term Sinclair a synonym of Glenogle. 



Sarbach Formation. Walcott, 1923' 



Type locality. — Glacier Lake and Mount Sarbach area at the head 

 of the Saskatchewan River. Mount Sarbach, 10,700 feet (3,261.3 m.), 

 rises between the south (Mistaya) and middle (Howse) forks of the 

 Saskatchewan, and Glacier Lake is west of the middle fork at the 

 north base of Mount Forbes, 11,902 feet (3,627.7 m.). The Sarbach 

 formation occurs in the clitTs of Mount Sarbach and continues west 

 into Mount Forbes. 



Derivation of name. — From Mount Sarbach." 



Character and thickness. — Glacier Lake (B on map), i. Thick- 

 bedded, siliceous gray limestones, 700 feet (213.4 m.). 2. Argillaceous 

 shales and limestones, 420 feet (128m.). Total, 1,120 feet (341.4 m.). 



Clearwater Canyon (E on map) 33 miles (53.1 km.) southeast 

 of Glacier Lake. i. Compact, hard, thick-bedded siliceous lime- 

 stones, 762 feet (232.3 m.). 2. Gray siliceous limestones in thick 

 layers above and thinner layers in lower part, 410 feet (125 m.). 

 Total, 1,172 feet (357.2 m.). 



On northeast shoulder of Fossil Mountain (F on map) 18.5 miles 

 (29.8 km.) south-southeast of Clearwater Canyon section, i. Thick- 

 bedded, hard, more or less dolomitic limestone and interbedded belts 

 of gray limestone, 900 feet (274.3 m.). 2. Light gray magnesian 

 Hmestone with a little chert, 415 feet (126.5 "''•)• 



In Ranger Canyon (H on map) in the Sawback Range, 36 miles 



(57.9 km.) southeast of the Clearwater section, the Sarbach is rep- 



^ resented by 124 feet (37.8 m.) of lead-gray and dark gray cherty 



^ Loc. cit., pp. 24-31. 



'Smithsonian Misc. Coll., Vol. 72, No. i, 1920, p. 15; Vol. 67, No. 8, 1923, 



p. 459- 



^ Kindle misquoted Sarbach as Sarback and called attention to its similarity 

 to Sawback of Allan. Pan-Amer. GeoL, Vol. 42, No. 2, 1924, p. 117. Walker 

 falls into the same error. Geol. Surv. Canada, Mem. No. 148, 1926, p. 22. 



