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westerly direction to Pipestone point, where sericite schist 

 is prominently developed, likewise an abundance of 

 ferruginous carbonate which in some cases is abundant 

 enough to suggest a low grade iron ore. Such an outcrop 

 is found on a small island just east of this point, where 

 apparently it has resulted from the alteration of a Keewatin 



Metamorphosed sericite schist; Slate island, Lake of the Woods. 



porphyry. Another outcrop of this same material occurs 

 on the mainland east of Square island. 



Crosssing Andrew bay from this place a peculiar tepee 

 made of split logs and covered with brush and earth may be 

 seen near the entrance to Bottle bay. Entering Bottle 

 bay the rock is a breccia agglomerate passing into sericite 

 schist. This is followed by darker traps (on the west side), 

 some of which are recrystallized and folded over granite 

 bosses. Farther south the granite bosses are to be observed 

 without the covering of trap, but occasionally a contact 

 breccia is seen where the granite has intruded the trap. 

 These bosses are in the form of 'roches moutonnees' and 

 have undoubtedly been subjected to severe glacial action, 

 but the factor determining the resultant form is apparently 



