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Show RAILROAD NEEDED III WYOMING REGION Devils Tower Quadrangle Is Looked Over by Experts of Government. The Devil's Tower folio. Just losucd by tho United States geological survoy an folio 1G0 of the Geologic Atlas of the United States, describes tho geography, geology and mlnoral resources of what la called by tho survey th Devil's Tower quadrangle. This quadrangle Included about 860 squavo miles in tho northeastern northeast-ern part of Crook county. Wyoming. Its northern limit being the Montana-Wyoming State line. Its southeastern two-thirds two-thirds lies In tho northern extension of the Black Hills uplift, and Its northwestern northwest-ern portion extends Into the Great plains, so that its topography oxhlblts foaturcs of both regjonn. Elevations within tho quadrangle range from 3R00 feet above sea level In the plains region to 5800 feet at tho highest point of the Black hills area. The quadrangle Includes portions of the valleys of Bolle Fourcho nnd Little Lit-tle Missouri rlvors, tho Little Missouri bunding within It. The most notable feature of tho region, and one of tho most conspicuous topographic topo-graphic forms in the entire Black hills area. Is the mass of Igneous rock from which It is named tho Devil's Tower which stands on one of the ridges west of the Bolle Fourchc. About 100 feet in diameter at the top, almost circular in form, and with sides nearly vertical. It rises 600 feet above the sandstone platform plat-form that forms Its base and a little less than 1250 feet above the river, which runs n short distance to the east. The mineral resources or the quadrangle arc described under the headings coal, building stones, days, gypsum, soils end water supply Although coal has not been discovered within tho area. It may possibly occur hero In local basins. For the building stones, clays and gypsums there Is nt present no demand, as tho region is so far from railroads that their development would not bo very profitable. As for the water supply, springs are I few and of small volume, and running i water Is scanty In amount during the : greater part of the year, for the waler of the rains and melting snows runs off rap-Idly, rap-Idly, usually In freshets A larga amount of this run-off might be saved by dams and made available for Irrigation, as suitable suit-able dam sites exist at many localities, especially on the higher slopes. Throughout Through-out tho quadrangle prospects are excellent excel-lent for obtaitiTng water supplies by meaii3 of antesian wells, since water-bearing beds may be easily roachod bv drilling at most localities. As the region is seml-arld. seml-arld. tho value of these waters to tho future Fettlers cannot be overestimated. The folio, which Is the work of N". H. Darton and C C- O'Hara. contains, in addition to nine large pages of text, topographic and geologic maps and reproductions repro-ductions of photographs of the region. It is for sale by the survey at 25 cents, nnd applications, with remittances, should bo addressed to the Director. United States Geological Survey, Washington, D. C. |