NO. I FORMATIONS OF BEAVERFOOT-BRISCO-STANFORD RANGE 



29 



Mons shale above but below this portion the layers are more even and gradu- 

 ally became thinner and the limestone is more silicious, finer grained and not 

 at all semi-crystalline. This 

 limestone may possibly repre- 

 sent a part of the Elko forma- 

 tion as seen at Grainger Moun- 

 tain on the west side of the 

 Kootenay Valley, 3 miles (4.8 

 km.) east of Sabine Mountain 

 or it may be the lower part of 

 the Lyell ? limestone. 



GRAINGER MOUNTAIN 

 SECTION 



The term Grainger Aloun- 

 tain is here applied to a 

 mountain that rises from 

 the Kootenay Valley where 

 the valley bends west to 

 merge into the " Rocky 

 Mountain Trench " opposite 

 Canal Flats.- It is about 3 

 miles southeast of Sabine 

 Mountain and is outlined on 

 the north and east by the 

 canyon of Whitetail Creek, 

 and to the south it extends 

 as a ridge that merges into 

 the high ridges between 

 Kootenay River and Sheep 

 Creek. Its summit is about 

 4 miles (6.4 km.) east-north- 

 east of Kootenay River 

 bridge. 



The name Grainger is de- 

 rived from the old Grainger 

 ranch which is located at 

 the west foot of the moun- 

 tain on Kootenay River."^ 



At the summit of the 

 mountain and on the north 

 slope there is a great thickness of gray magnesian limestone that 

 was presumably overlain by shale or thin-bedded limestone, as on 



^Name approved by the Geographic Board of Canada, November, 1923. 



