73 



The shale above this (Nos. 7, 8, and 9 of the above 

 section) is best exposed for collecting purposes in the cut 

 on the east and west road to the north of the prison reserve, 

 where 16 feet (4 -8m.) of thin bedded shaly limestone are 

 exposed. Fossils occur here abundantly and include 

 Favosites aspera, Cyathophyllum sp., Platystrophia bifo- 

 rata var. lynx, and Rhynchotrema capax. An occasional 

 massive specimen of Favosites aspera may be seen in the 

 basal beds of the quarry immediately north of the village. 

 These sometimes have a diameter of 12 to 15 inches 

 (30 to 38 cm.). 



As already mentioned the beds which are quarried, 

 yield but few fossils. Such as do occur may be best seen 

 in some of the abandoned quarries, where weathering has 

 assisted in bringing out an occasional one. Such a quarry 

 is to be found directly east of the Manitoba Company's 

 quarry, to the south of the road allowance which passes 

 between the two quarries. 



Beneath the light covering of till, the surface of thin 

 limestone has been beautifully polished and striated in a 

 direction S 20 E, furnishing evidence of the latest advance 

 of the Keewatin glacier from the north and northwest. 

 The Labradorian glacier from the northeast also reached 

 this hill at a later period, but the striae left by it, being 

 about southwest, are not abundant, as the older till pro- 

 tected the underlying rock. On the brow of the eastern 

 side of the mountain, however, is a little ridge six feet 

 (1 -8 m.) high of angular blocks of limestone which may be 

 a morainal accumulation shoved up by this glacier. 



On the opposite side of the hill is an old gravel beach 

 of Lake Agassiz, and in the head of the horseshoe-shaped 

 summit is another lower beach. 



SILURIAN— STONEWALL. 



Between Stony Mountain and Stcnewall there are 

 no rock exposures along the line of railway. The country 

 continues quite flat, but between the two stations there 

 is a rise of about 50 feet (16-7 m.), Stony Mountain being 

 777 feet (235 m.) above sea level, and Stonewall being 

 826 feet (251 -7 m.). 



