Show I I IN BOOK CLiffS GOAL COAL REGIONS United States Geological Survey Gives Out Report on Re Recent Recent Recent cent Investigations DEPOSITS COVER A VAST AREA Coal eoal oal Foil lid In II Almost II Quantity QU lille on oil 01 Tho Tue he Book Dook Uok Cliffs coal conI li In le part pait of or orIn ofin an in In basin bahl In in arid Ilat eastern Utah around arund which the th outcrop of ot coal boa ring rInG rocks can be bo for tor or more 1010 than juan COO OO miles ml On Urn southwest from tho this vicinity of or Mount lount Hl rl Utah northward to the coal coat measures form tho the aster escarpment of oC tho he Thence they IhlY trend southeast southeastward ward tard to Grand river rh r constituting In Inthe the tw th Book Cuffs the tho southern souther rim of at o othe the tho basin Beyond Grand river the coal measures continue eastward forming tho ha southern base bue of ot Grand Mesa and an extending to the th vicinity of or resoled Butte Bulte Butr From that place pl ce tha 1113 outcrop trends northward and crossing cro ing Grand river again In the tho vicinity of ot Newcastle continues northward along the th Grand Omd Hogback to the Danforth hl Thence the coal cl turn tur westward 1 anti outcrop alons niong the tho south southern souther ern erso er flank fank of tho the Uinta mountains Tit This great coal conI Held has lias has beets been ben but partially prospected and mines are aro In operation at only a n few localities but enough of or orto o othe the to crest has usia been hen explored to 10 prove that that It Is one of oC th th most Important coal reserves of at the Rocky Hocky mountains Cool Coal has long Inn been known to 10 be bl pros pres present ent ant In the nook Hook The geology of at tho the region was WS studied by b Mr 11 A AC AC C Peale of ot the Hayden Hajden Ha den survey sun In II The Tho Held Is mentioned by iy b Mr Ir IS H C CHills Hills In II his hla report on tho the Coal ConI Fields of oC Colorado and by Mr 11 I L S Storrs In his hll paper Impel on tho the Rocky Mountain Coal Coni Fields Mr I Arthur Lakes has hu also 1180 referred to part of the area and amid has bas described the tho Book Cliff clr lift mines Hut BuL the i was not examined In detail until 1905 1305 when Mr ll J A Taft Taff ar of tho the United States geological survey studied the western wesler pert part of or the tho Iw field from frol rein tho the vi vicinity vicinity 1 of or Sunnyside e to Utah und 1 Its Is continuation along alon tw th ot of the Wasatch plateau In the summer of oC 1900 1906 another party part from the tue national survey suncy consisting of at Hiru G C I Ii D Richardson W V D B Neal Neol NealL I L J S and C D Perrin made mad a n reconnaissance survey of tho the I eastern part Dart of at the Book Dook Cliffs field Id from tho ho point whore where Mr tr Tafts s work I terminated to Grand river Colo Cola and n i brief report on this survey prepared by Mr r Richardson was the genie ceolo eolo gist In charge has just been ben published In bulletin No which shiah or of tho the United States geological surveys Contributions to Economic t Geology 1906 19 6 The more 1010 detailed report ot of which this Is an art abstract will soon bo ho published The Tho Book lok cliffs clil extend eX ld from Grand River Colorado Colordo to Helper Utah at as atthe atthe the tue east edge of the Iho Match plateau They rb occupy a n belt from ono one to ho 10 10 miles wide In which tho the elevation rises from 2000 to feet foet A A close eloe estimate cannot be hO mado made of ot tho th total amount of coal al available be he because because cause of Incomplete knowledge of or tho the Held lell A rough approximation may ma be leached cached however hower by o assuming that hn tho practical limit of ot tho the IbId Held Is Ii six iU dillies back from froin the and that tho the total thickness of ot the coal cOlI may bo ho represented by I a n single bod bed 7 feet feel thick extending throughout hout the tho area Tho Thu latter figure Introduces an element clement or ot much tuch uncertainty Inasmuch as the time coals have hlo not been continuously traced trac I But Dut on 01 tho the above basis the tho area contains about aboul 1010 square miles of at coal oal ol land or of which are In Colo Cob Colorado Colorado rado rode A cubIc toot foot o ot of coal of 13 specific cilia cilc gravity weighs pounds and a square mile 11 of or mch coal one on foot Coot thick contains 11 short tons Ions On 01 the Iho above assumption therefore the total amount IH is over oler tons deduct deducting Ing In if for fOI waste In mining I I leaves about tons bus These Thes fig figures f ores ures site are of o little lithe moio 1010 value than hun to ex ox press the tho fact that tho the Held lell contains an nn Immense coal reserve |