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Show IRON IN WYOMING. Interesting and Historical Pacts About Iron Mountain Deposits. Iron Mountain, in southeastern Wyoming, Wyo-ming, in the cost-central part of Albany county, is a nigged ridge of granular igneous rocks 300 to 600 foet wide and 1 3-2 miles long, whose rugged top represents rep-resents a marked contrast to the regular regu-lar hogbacks of the foothill sedimentary sedimen-tary rocks. It lies eight miles west of Iron mountain station, on the Colorado and Southern railroad, from which it may be reached by wagon road, and approximately ap-proximately forty miles northwest of Cheyenne. Chugwater Creek passes in a gorge through the iron ore body of the mountain. The iron was first noticed September 30, 1S10, by Capt. Howard Sransbury, u. o. .-irmv, wnen ae camped on tho banks of Chugwater Creek on hie way to Great Salt Lake. ITe found among the banks of tho streams and in the adjacent hills "immense numbers of, rounded black nodules of magnotic iron ore, which seemed to bo of unusual richness." The greater portion of tho main deposit passed into tho hands of the Union Pacific railroad as a part of land granted to it in 1S62. In 1S72 a wagon road was built to tho deposit prospectors rushed in, and the whole country was staked. In the following year a postoffico was established, only to be abandoned a year later. Eight or ten years ago the Colorado Fuel and Iron company employed 15 teams for several months in hauling ore from the ' mountain to the railroad, whence it was 1 shipped to their smelters at Pueblo The work was then suddenly abandoned. aban-doned. This, in brief, is tho history of the development of this rogion. whose economic possibilities are again nwak- 1006 Sydney H. Ball, of the United States geological survey, visited tho mountain, and ho has prepared for the survey's annual volume on economic geology (Bulletin No. 319) an account ot the deposits, chiefly becnuqn tw. viously published descriptions, a list of which is given, are out of print or dif-ficult dif-ficult of access.. The mass or iron ore torming the main doposit is an igneous dike, 1. 1-4 miles long and 40 to 300 feet wido, 1I3 greatest width being at the point where Chugwator Creek cu s through tho mass. A second dike of the irnon 1or.?Art6 ,t0 20 fefit wide, is exposed about 300 feet downstream (farther east), on the south side of tho creek-and creek-and about one-eighth of a mile south-east south-east of. tho south end of the main mass S00a ?Z??J10' 30 So and .100 fet long, with a trend approxi-mately approxi-mately parallel to that, of tho main mass Several smaller dikes, 10 to 50 feet long and none of thorn ovor 3 feet wide, lie east of the mass in a parallel alignment. I'urunei Tho ore is a black, grnnular, holo. crystalline rock, with metallic or sub metallic luster..and, as chemical anah'. ihiniiim' B?BintLn WKh taMa,Jf tiuinium. the present smelting methods iron ores fhat contain so much titanium are almost, vnlueloss aqfW I are practicallv unreducible -ff' t2 y poratures of "blast o open-hearth fur' naccs. As a constituent of iron ami steel, however, .titanium increase toughness and tensile strength, and Hm production of h gh-grado orc 'frSm ;0 tanilerous ores is under mmn T J-tions J-tions .profitable. Procrcs! fi ffi1' made in tho treatment of these orf UTrnn ffl,.tro time thodewliS at Iron Mountain w doubtless hi great commercial importance. 0 |