282 



Miles and 

 Kilometres. 



40-3 m. Alba Station — A short distance beyond 



64-8 km. Alba, the railway departs from the lake shore 

 to again come upon it after a distance of about 

 3 miles (4-8 km.) where it passes the heads of 

 several small bays extending inland from North 

 Basin, itself an arm of an irregularly shaped inlet 

 known as Denys basin. At various points as 

 the railway passes within sight of North basin, 

 the steeply rising north end and northwest 

 flank o the ridge of North Mountain is visible. 

 At Orangedale station, the railway passes 

 around the head of North basin and looking up 

 the valley at the head of the basin, the high 

 ridge of Craignish hills, about 5 miles (8 km.) dis- 

 tant, may be seen rising from the Carboniferous 

 lowland. All of the low country, 7 to 9 miles 

 (11 -2 to 14-5 km.) broad, between the Craig- 

 nish hills on the northwest and North Mountain 

 on the southeast, is occupied by the gypsum, 

 limestone and associated strata of the Carboni- 

 iferous Limestone series. 



45-4 m. Orangedale Station — About i| miles (2-4 



73-0 km. km.) beyond Orangedale station the railway 

 skirts the head of Seal cove, the last point on the 

 railway from which the waters of Bras d'Or 

 lake are visible. Beyond Seal cove, the railway 

 passes into the valley of River Denys, a winding 

 sluggish stream. The railway follows the river 

 for some distance, then crosses it, and 2 miles 

 (3-2 km.) beyond passes River Denys station. 



Between Orangedale and River Denys, the 

 railway gradually approaches North Mountain 

 and a number of uninterrupted views are afforded 

 of the steep northwest face rising from the low- 

 lying area underlain by the Limestone series. 

 The ridge of North Mountain rises to heights of 

 between 600 and 800 feet (180 to 240 m.) and is 

 formed of Pre-Cambrian rocks. A portion of the 

 Pre-Cambrian is composed of crystalline lime- 

 stone, quartzite and various types of schists 

 associated with "felsites". Such rocks occur 



