Weekly Arizona journal-miner., 1907-04-10
|NsTAll|Nc' ! HOIST AND STAMP
 MILL
Coronado Planning Big Development
 Work
(From Tuesday . Daily.)

richest gold mining districts in the Ter rrlory, it's principal vein parallcling 'bc famous Congress mine, three. fourils of mile to tho north, the properties of the Coronado Gold Min. ng company, now about to be cauip. ped with n boisting plant and 2O.siamp m,ll, are nmong the most promising of ihc partially developed mines in tho Territory.
 Locatcd as far back as May. 1871. Inc lcdgcs included in the holdings of thc company had reputation for many year, os rich gold producers when the yellow metal was extracted from their gtassrocts deposits by the crude nras. Ira process, long before the grcat Con. grcss mine attracted the attention of Inc world to i,s mineral wealth, when opened under the direction of F. Nj. Murphy, for Diamond Jo" Reynolds. railings left ot the old arastra sites by May and his associates, which were purchased few years ngo by William NcGrcgor of the Congress minc force, for sj a ion, nettcd him s30 to tho lon when treated in tho modern plant Ht inc Congress mill. showing that tho ninc, when opened and the output treated by present day methods, may Eei even eclipse tho great record of fhe Congress ss gold producer.
 Nature has favored the owners of hese properties in many ways. An abundance of water for all purposes 'au he developed ot the mill site, To. aied at the foot of the mountain, where the mill will bc erected and to which inc ores can bc carried by eraviiy 'ra'nway from the working (haft where the new hoisting plant ~ili bc located aud from which the Nein will be explored. This tramway 'an bc constructed ht n nominal cx. pensc. inc topography of the ground being such that no heavy grading is |equired. From inc main line Of tho F. F. F. < F.. which passes over one pf The claims, n spur to the mill will be built. where ail supplies con be de. 'Vcred from the cars and shipments pf concentrates made without the ex. pense of hauling considerable distance To inc railroad station, which is the ts'c at present in many producing ramps in the county.
 Six of tho twelve claims of tho group, which inelodss . wator right, mill site and tunnel site, cover the main ledge, rupning in an casterly md westerly direction. traccablc peross the mountains for ton miles The 1lling of the ledge is porphyry n granite and diorite contact, tho a'lcr forming the hanging will. The rein dips A degsecs to the east and |everal of the shafts sunk on it follow be footwall, chewing ove-lsoAiss, from 'aAtssssisesss <e; tvo feet ip- AhishA| pe'r, saAs wiSssise out in pIssss te| bar fsst. Thssssssis shsft has bcen (unh al0R thsc dip of tho vein, to n 'epth of 530 feet. Prom tho 2OO.foot E~el down the orc body shows an average thickness of twenty inches, Ssays from which give good returns p gold. Drifts hsve been run from the OO foot level sbsut co feet each way, oc orc body showing continuity in 'ze and values here m in the shaft.
 raise from tho east drift connects 'fh drift from Q perpendicular shaft nnk 200 feet northeast of the 530' bot shaft, which gives good eircu' ption of air at all times in the mine. Pn the dnmp of this shaft there is bont 1000 tons of ore piled that has cen sampled, giving returns ranging rom so to Ai2 to the ton in gold, and pany tons of which will sample as iRh as $25, all of the higher grade pes having been sorted and shipped it's former operators.
 N"'' "io"k thc Ncih "hu "" '"' |olden Nave claim, shaft was sunk
 depth of 300 feet, many years 20. In n drift run 60 feet along tho f'n, at depth of GO feet, there is phtcen inches of ore in quartz, mixed ''h msatite of iron, large portion
 which samples >llo to the ton. osseut tunnel, run on this claim ioo 'e'' taps the ledge st depth of 35o let on the incline. This opening Is pw eaved in, but I,nincrs who were 'ployed there state that the ore show g m the vein at this point was even l'ter than in tas shaft. it A number
 other shallover openings on tho 4. A ...