File:Forest physiography; physiography of the United States and principles of soils in relation to forestry (1911) (14776470762).jpg

Identifier: forestphysiograp01bowm (find matches)
Title: Forest physiography; physiography of the United States and principles of soils in relation to forestry
Year: 1911 (1910s)
Authors: Bowman, Isaiah, 1878-1950
Subjects: Physical geography Forests and forestry Soils
Publisher: New York, J. Wiley & sons (etc., etc.)
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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ainous, for it has been developed largely across theedges of the strata; the v/estern slope is down the dip of the strata andthough considerably dissected is far less bold. Its summit is crownedby a cluster of peaks, true erosion remnants, which reach above timberline.^ WASATCH MOUNTAINS Although the Wasatch Mountains are not a part of the High Plateausthey are in such close relation to them as to demand a word of expla-nation at this point. They stand as a great wall upon the northwesternmargin of the plateau country overlooking the Great Basin, and con-sist of a number of abrupt ranges crowned with sharp peaks that attainaltitudes of 10,000 to 12,000 feet. Their boldness gives rise to a mod-erately heavy rainfall, and the mountain slopes bear forests of spruce,pine, and fir, while the broken and drier foothills support a growth of 1 C. E. Button, Geology of the High Plateaus of Utah, U. S. Geol. Surv., 1S80, pp. 195et seq. 2 Idem, pp. 251 et al. Idem, p. 173. 266 FOREST PHYSIOGRAPHY
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PORTION OF SALT LAKE QUADRANGLE, UTAH Showing (listributiou of glacial formations Scale of Miles 0 1 2 I G 8 10 12 Contour interval 1000 feet Fig- 73- — Former glacier systems of the Wasatch Mountains. (After Atwood, U. S. Geol. Surv.) pinon pine and cedar. In the valleys there are many natural meadowsbut no forest growth, merely groves of aspen about the springs andlines of willow, box elder, and Cottonwood on the borders of thestreams.^ The Wasatch Mountains extend about loo miles south of the meetingpoint with the Uintas, or about to Mount Nebo, 75 miles south of 1 J. W. Powell, Lands of the Arid Region of the United States, U. S. Geog. and Geol.Surv., 1879, p. 96. COLORADO PLATEAUS 267 Great Salt Lake. Beyond this point the western margin of the plateaucountry is the western edge of the High Plateaus. These in turn giveway to the broad platform of Carboniferous rock that constitutes thesurface of the Grand Canyon District, whose western margin is theGrand Wash Cliffs. The easter

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