Cf?OSS SECTION THROUGH TUNNEL LINE 



^ SS/^'ZZ'E- 



S35''46'£ 



Scale 

 Vertical I" = 500' 

 Horizontal l"= 2500' 



set" soe 



LEGEND 



Pegmatite Dikes 

 Granite Dikes 



Biotite Hornbhndite Dikes 

 Dioriie Porphyry Dikes 



PT^A^ Mai 



Brookfield Diorite 



Hartland Schist 

 Berkshire Schist 



IRTTT] Gneis^ic 



I I Quarf z. + Mica Schist 



—^QuartZfte, Hornblende _ 



\ Muscovite, Garnet Schist 



Profile Map of Tunnel 

 Bull. 40, Conn. Geol. & Nat. Hist. Survey 



