Geolagicsl Survey , Canada 



H 



Legend 



Ol/gocene and later 



Volcanic i-ocks , main/y 

 andesitic ^nd basalfic . 



O/igocene 



Sandstone , cang/omerate 

 shs/e and coal. 



Jurassic end Tertiary 



Gramts.granodiorite and ^ 



Carboniferous 



Cherty ^uartxite , argillite 

 limesfons and volcanic f/oufS. 



/foute map between Midway 6nd Princeton 

 Mdes 



