NO. I FORMATIONS OF BEAVERFOOT-BRISCO-STANFORD RANGE 5 1 



Thickness. — Estimated for the Mons-Messines section, i,ooo feet 

 (304.8 m.). In the Clearwater Canyon section 33 miles (53.1 km.) 

 east-southeast the measured section is 663 feet (202 m.). 



Organic remains. — x>Iiddle Devonian. At Glacier Lake Canyon : 



Stromatopora sp. 

 CyathophyUum sp. 

 Atrypa reticularis (Linn) 



At Clearwater Canyon the collection from 100 to 105 feet (30 to 



32 m.) above the base gave: 



Stro))iatopora sp. 

 Crinoid columns 

 Gomphoceras sp. 

 Atrypa reticularis (Linn) 

 Stropheodonta sp. 

 Palaconcilo sp. 



Identified by Dr. Edwin Kirk. 



Observations. — Systematic collecting at the Clearwater Canyon 

 locality would add a number of species not in the small collection that 

 was hurriedly made when measuring this part of the Devonian section. 



Pipestone Formation 



UPPER DEVONIAN 



Type locality. — Section on northeastern side of Pipestone Pass 

 down over the slopes of Devon Mountain to the level of Clearwater 

 Canyon, about 2 miles (3.2 km.) from the head of the canyon. 

 Pipestone Pass is 9 miles (14.4 km.) north of Lake Louise Station 

 on the Canadian Pacific Raihvay, Alberta, Canada. 



Derivation. — From Pipestone Pass at the head of Pipestone River. 

 Character. — Compact light gray limestone in thin layers with some 

 silicious cherty stringers and nodules and silicified fossils. 



Thickness. — At the type locality there is about 1,200+ feet (365.8 + 

 m.) between the Banfif shale alx)ve and the jMessines formation below. 

 Organic remains. — Upper Devonian corals as follows : 

 Pachyphylliiiii zvoodmani (White) 

 CyathophyUum sp. 

 Heliophylluni sp. 

 Striatopora sp. 

 Cladopora sp. 

 Roniingeria sp. 

 Atrypa reticularis (Linn) 



Identified by Dr. Edwin Kirk. 



Observations. — -The exposure of the strata at Pipestone Pass and 

 over Devon Mountain to Clearwater Canyon is an unusually complete 

 and fine one, and a large collection of fossils could readily be made 

 by a competent collector. 



