Image from page 234 of "The book of the national parks" (1920)

Identifier: bookofnationalpa1920yard

Title: The book of the national parks

Year: 1920 (1920s)

Authors: Yard, Robert Sterling, 1861-1945

Subjects: National parks and reserves

Publisher: New York : Charles Scribner's Sons

Contributing Library: Harold B. Lee Library

Digitizing Sponsor: Brigham Young University

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SLUISKIN RIDGE AND COLUMBIA CREST

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From a photograph copyright by A. H. Barnes MOUNT RAINIER SEEN FROM TACOMA MOUNT RAINIER, ICY OCTOPUS 173 between the glacier and the river is striking and con-sistent, notwithstanding that the geologist for tech-nical reasons will quarrel with you if you picturesquelycall your glacier a river of ice. Any elevated view-point will disclose several or many of these mightystreams flowing in snake-like curves down the moun-tainside, the greater streams swollen here and thereby tributaries as rivers are swollen by entering creeks.And all eventually reach a point, determined by tem-perature and therefore not constant, where the riverof ice becomes the river of water. Beginning white and pure, the glacier graduallyclothes itself in rock and dirt. Gathering as it movesnarrow edges of matter niched from the shores, lateron it heaps these up upon its lower banks. They arelateral moraines. Two merging glaciers unite thematerial carried on their joined edges and form amedial moraine, a ribbon bro

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