Guide books of excursions in Canada1-10 . •11 Reddish. Kind of fuel Coal. From Five Fingers mine to Five Fingersrapids the rocks along the river are mainlythe Laberge Jura-Cretaceous sediments, but inplaces volcanics of Mesozoic or Tertiary ageoccur. 337 m. Five Fingers Rapids—Five Fingers rapids 539 km. are caused by heavy beds of coarse conglomerateof the Laberge series, which cross the riverat that point. At one time, a fall probablyexisted there, but the barrier has now been cutthrough at several points, giving the rapids theappearance intended to be conveyed by theirname. The massive rock
Guide books of excursions in Canada1-10 . •11 Reddish. Kind of fuel Coal. From Five Fingers mine to Five Fingersrapids the rocks along the river are mainlythe Laberge Jura-Cretaceous sediments, but inplaces volcanics of Mesozoic or Tertiary ageoccur. 337 m. Five Fingers Rapids—Five Fingers rapids 539 km. are caused by heavy beds of coarse conglomerateof the Laberge series, which cross the riverat that point. At one time, a fall probablyexisted there, but the barrier has now been cutthrough at several points, giving the rapids theappearance intended to be conveyed by theirname. The massive rock buttresses and thenarrow tongues or rushing water between,have a formidable appearance. River steamers,however, go through without much difficultyat most seasons, but when the water is high,upstream boats have to be lined through witha cable attached to the bank above. 343 m. Rink Rapids—Rink rapids have more the 548 km. appearance of a broad stony riffle than a rapid, although, especially in high water, the current Excursion C Steamer Whitehorse in the Five Fingers rapids. 89 is swift, being probably about 8 miles (13 km.)per hour. From Rink rapids to Selkirk, the Lewes isremarkably straight and follows a generalcourse of about S 500 W, the current averagingabout \]/2 miles (7 km.) per hour. This stretchof the river, more so than most portionsof the stream above, contains a large numberof islands which are somewhat conspicuousin that they characteristically occupy posi-tions in midstream. The valley is generallywide, and the hills bounding it seldom exceed1,000 feet (300m.) in elevation above the are prominent, and in most places arefrom 100 to 200 feet (30 to 60 m.) above thestream. An exposure of boulder clay occurs a shortdistance below Rink rapids, and is the mostnortherly occurrence of this material notedon the Lewes. This point is probably nearthe limit of glaciation in the Lewes River striae several hundred feet above the riverwe
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectgeology, bookyear1913
