File:Campbell's new revised third edition complete guide and descriptive book of the Yellowstone Park (1916) (14590839370).jpg

Identifier: campbellsnewrevi1916camp (find matches)
Title: Campbell's new revised third edition complete guide and descriptive book of the Yellowstone Park
Year: 1916 (1910s)
Authors: Campbell, Reau
Subjects:
Publisher: Chicago : H.E. Klamer
Contributing Library: Harold B. Lee Library
Digitizing Sponsor: Brigham Young University

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ept by digging into the ground. Thiscondition prevails all along the road between Norris and the Grand Canon. Along the shore of the Yellowstone Lake the road passes over lacustrinedeposits for considerable distances, which were laid down when the lake stoodat its ancient level. Along the Yellowstone River from Mud Geyser to the head of the rapids 46 the road lies all the way in glacial drift, which indeed extendi, along the riveramid outcroppings of rhyolite to below the site of the Grand Canon Hotel. The Grand Canon is carved through decomposed rhyolite. On leaving the Grand Canon Hotel from Mount Washburn, the road acrossthe undulating plain to the base of the mountain lies in glacial drift whichoverspreads in a thin coat the underlying rhyolite. Where the road crosses the east fork of Cascade Creek and begins theascent of the mountain, it enters the area of andesite rocks in the form of theearly basic breccias. The road continues in this rock to the summit of the mountain and down
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Copyright, 1904, Detroit Photographic Co. klamers store, upper basin. the northern slope to within three miles of Tower Creek, where it again comesinto an area of rhyolite. Glacial drift is everywhere found in the lower valley of Tower Creek. Andesites compose the bed of the Yellowstone all along the lower course ofthe Grand Canon. Below Tower Falls this is capped by a conglomerate ofgneissic and andesitic pebbles in friable sandstone,* and this by a wonderfulwall of columnar basalt. Rising from the bottom of the canon a mile below Tower Falls is a stately, 47 isolated column of rockthat has resisted the wearof time. It is 260 feethigh, but does not rise tothe level of the basalt. The road from theYellowstone to the top ofCrescent Hill divide liesmainly in the early acidand basic breccias, orandesitic lavas. AH over these por-tions of the Park, begin-ning on the northernslopes of Washburn andextending east to SodaButte, the ground isstrewn with specimensof various sorts, agate,chalced

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