Mile 145-4. — A section exposed at this point shows 

 a heavy conglomerate band associated with tufaceous 

 sandstones. 



Mile 147-3. — Immediately beyond Ksi-den creek 

 the railway enters a tunnel piercing a narrow gravel 

 plateau. A strong riffle occurs here in the Skeena river, 

 above which the valley opens out into a wide irregular 

 terraced plain. 



Mile 149-4. — Sections at this point show soft, light 

 colored, tufaceous sandstones interbedded with dark 

 shales. 



Mile 152-2. — The Kit- wan-cool river, which is crossed 

 at this point, occupies, like the Kitsumgallum, a wide 

 north and south depression extending from the Skeena 

 north to the Nass. 



Mile 156-1. — The Hazelton beds are here intruded 

 by large altered and fissured diorite porphyrite dykes. 



Mile 161-05. — Sections of dark plastic boulder clay 

 are here seen for the first time in ascending the valley. 



Mile 163-4. — The Kitseguecla river, deeply trenched 

 in a long canyon, enters the Skeena from the south. East 

 of it is the Rochers Deboules range, a long mountain mass 

 breaking in places into high pinnacled peaks and sharp 

 crested ridges. 



Mile 164-2. — Skeena Crossing. — The railway, which 

 has hitherto followed the left bank of the Skeena, crosses 

 to the right. The river here and for some distance above 

 and below occupies a deep gorge sunk through the drift 

 into the underlying rocks, and a long bridge has been 

 thrown across this at an elevation of 140 feet (42-6 m.) 

 above the water level. 



The rocks of the Hazelton group, consisting here of 

 alternating bands and beds of grey, tufaceous sandstones 

 and dark, usually carbonaceous, shales, cut by occasional 

 diorite porphyrite dykes, are well displayed in the walls 

 of the gorge. They have yielded unequally to compression, 

 and sharp bends often accompanied by faulting alternate 

 with long easy folds. 



