MAP OF THE REGION 



437 



9eol<. 



3 Mifes 



LKGEND 

 Skdimkntabtt Rocks 



Dnn 



Bellingham series 



NarragHtiseti series 



Ashtoii schist 



Cumberland quartzite 

 IsNKous Rocks 



Diabase dikes 



Vein HU.irtz 



iH. 



Diamond Mill felsite 

 and agglomerate 



Riebeckite granite 



Riebeckiie granite 

 porp.hyry 



Joes Roclf granite 



Fine granite 



Grants Mills granite 



Milford granite 





Qnartz iliorite 



Cumherlimdite 



Labrador! te porphjrv 

 dikes 



Conr«wr InTervol 100 feet 



Figure 1. — Map of Diamond Hill-Cumherland Hill Region 



on the map. It may be noted that the paucity of outcrops at many 

 critical points seems to be a characteristic of the area and mates it diffi- 

 cult or impossible to settle certain questions of considerable interest with 

 the certainty that is desirable. A comparison of this map with that pub- 



