File:Annual Report of the Secretary of the Interior for the year ended June 30, 1880 (1880) (14760013916).jpg

Identifier: annualreportofse80unit (find matches)
Title: Annual Report of the Secretary of the Interior for the year ended June 30, 1880
Year: 1880 (1880s)
Authors: United States Department of the Interior
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Contributing Library: Clemson University Libraries
Digitizing Sponsor: LYRASIS Members and Sloan Foundation

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s worthy of more attention thanit is here possible to give. I refer to the numerous huge dikes whichtrend uniformly in parallel lines nearly north and south, unaffected incourse, size, or character by yawning canons or the thousands of feet ofcraggy mountain sides, to their snowy summits, ever standing high abovethe softer and deeper disintegrating volcanic formations between them.While all basalt, obsidian, and other columnar formations observedwithin the Park, when found in place, are uniformly vertical or radi-ating, these dikes, although as clearly columnar, are, in every observedinstance, positively horizontal, very hard, and not friable, and part, incolumns entire, across the dikes, thus appearing like gigantic steps as-cending the canon and mountain sides. GALLATIN RANGE. This range, so noted for its ragged basaltic formation, and sharp, un-broken crest north of Electric Peak upon the borders of the NationalPark, exhibits therein some novel peculiarities. Although retaining its
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YELLOWSTONE NATIONAL PARK. 579 north and south trend and character as a divide of the waters of the Yel-lowstone and Missouri, where it is severed by the yawning canon of theMadison Fork of the latter, still on much of the intervening distance itpresents not only a double line of peaks, but also a clearly distinctformation, outline, trend, color, and weathering of each. The westernrange, as viewed from tin4 deep valleys of the West Gallatin and theUpper Madison Rivers, presents a nearly continuous outline of reddishrocks of a friable formation, like coarse grained sandstone or crumblinggranite, and serrated by the peaks of the somewhat higher easternrange. The eastern range, from the valleys of the Gardiner and theGibbon, shows the sharp outlines of a light gray Carboniferous limestoneupheaved to the vertical in cross-sections to the trend of the mountain,the intervening yawning canon clearly revealing the contiguous westernrange. Thus not only have Mounts Holmes and Quadrant and Bell

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