38i 



the Laurentian granite that it seems doubtful whether it 

 is not merely a highly metamorphosed Keewatin trap. 

 Strength is give to this supposition by the proximity to 

 the felsite just mentioned and to the granite to be seen a 

 little later on the mainland. The dome-like outline of 

 the outcrop is also suggestive of the granite domes to be 

 seen in Bottle bay. 



A good view of the Manitou stretch to the right gives 

 an idea of the large, open portions of the lake, while to the 

 left the protected waters of Matheson bay are to be seen. 

 All the mainland between Devil's Gap and the Sultana 

 mine is an Indian reserve, and here is a forest growth of 

 Norway and white pine that has not been affected by 

 lumbering operations. Here also is an Indian village 

 with its characteristic primitive construction in effective 

 contrast with that of a modern house that stands in the 

 same village. Various types of tepees or wigwams are to 

 be seen, though the covering may be lacking, as it is custom- 

 ary nowadays to cover the frames with canvas. The 

 frames, consisting of four inclined poles meeting at a point 

 with horizontal cross poles, were used in smoking and 

 drying of meat. 



Just beyond the Indian village lies Bare point, where 

 the darker traps give place to an exposure of sericite schist 

 which may be traced along the shore for about two miles 

 (3-2 km.). This outcrop however is not easily accessible 

 in a launch. At Quarry island the rock changes to a granite 

 of the same character as that at the Sultana and Ophir 

 mines. 



From the Sultana mine a walk of about a mile affords 

 an opportunity of studying the contact of the granite 

 with the Keewatin. Three hundred feet (91 m.) north 

 of the landing is a pyrrhotite vein about 10 feet (3 m.). 

 wide, in what appears to be a quartz porphyry. The old 

 dumps and the mill furnish interesting material for study. 



Following a trail from the Sultana mine, the contact 

 between the granite and the Keewatin and the gradation 

 from a fine grained granite to a coarse granite porphyry 

 may be observed. From the summit of the hill above the 

 Sultana mine a comprehensive view of the northern part 

 of the lake is obtained. On reaching the Ophir mine 

 comparatively unaltered specimens of the granite porphyry 

 may be secured on the dump, where it is also possible to 

 find specimens of quartz showing free gold. 



