207 



Kilometres ^ n stratigraphical grounds, Fletcher concluded 

 that the Union beds underlie the Windsor 

 strata and therefore he considered them to be 

 of Devonian age. In neighbouring districts, 

 however, the Union and associated strata carry 

 a flora of mid-Carboniferous (Millstone Grit?) 

 age. 



As the railway descends to the valley of 

 Salmon river which flows westerly into the head 

 of the Bay of Minas, the high hills of the Cobe- 

 quids become visible to the north. These hills 

 are flanked by disturbed Carboniferous strata 

 which, in the valley of Salmon river, are over- 

 lapped by horizontal, Triassic sandstones and 

 conglomerates. Truro is situated in the Triassic 

 area, on the southern side of Salmon river and 

 the boundary between the highly disturbed 

 Union beds and the undisturbed Triassic, passes 

 through the southern outskirts of the town. 



34 m. Truro — Alt. 60 ft. (18-3 m.). 



54-7 km. 



