The copper era., 1903-01-22
CORONADO COMPANY
 MAKES BIG STRIKE.
Important Developments Made by
 Company in Few Months.

The Coronado mining company was recently organized by Wm. E. ThOmp' son, of Boston, (who so successfully financed the Shannon company for the purpose Of taking over the Mclean group Of twenty-two claims, which are situated in the Coronado fountains, near Metcalf, in the center of the min- eral section, and adjoining properties of the D. C. and A. C. companies upon which have been developed some of the largest and richest mines in the territory. The work Of ex plotting this newly acquired territory was begun in September last. The first extensive development work was commenced on the Emerald, and the tunnel is now in POO feet. A shaft was sunk from the surface on 2O-inch streak of glance, which will connect with q winze from the tunnel which is fol- lowing down on the same streak of rich ore, and has now reached q depth Of more than thirty feet, which is l30 feet from the collar ot the shaft Aside from the rich glance ore there is a fine showing Of concentrating ore. George Husband, an old time miner Of the southwest, who is in charge of the work, assured an ERA representa- tive that 100 tons of glance ore, with an average value of 20 per cent. had been taken out in sinking the shaft and winze, which is oi itself q most remarkable showing, but in addition to this a considerable tonnage of second class, estimated at 10 per cent, has also been taken out. The third class, or concentrating ore, will average about ] per cent
 THE BIC STRIKE,
 however, was made on the Sapphire, which adjoins the Emerald further up the gulch. A tunnel was being driven to cut the Coronado dIke, and at lis tancc of l5O feet from its mouth an S- foot lead of fine sulphide ore was struck which assays better than per cent. and is similar to the ore now be- ing taken from the Matilda shaft, which is thought to be the same lode. 1 This strike of coursa has e"antII- | plated the Coronado people, as it proves that they have q large lead of fino concentrating ores on their prop | erty. The tunnel will be continued on !. to strike the porphyry and granite l contact, which will be hastened by day and night shifts. In tho meantime drifts will be run each way on the sul phidc lode, which is so soft that it is estimated it can be taken out at a cost of 70 cents per ton in driving the drifts, after which it can be stopped out for probably one-half that amount. The strike is considered Of much inn portance in that section of the district, and since it was made the Coronado people feel justified in arranging for their
 MAIN TUNNEL which will be started some consider able distance further down the gulch, and driven in along the contact with electrical drills. This tunnel will be about 20 feet below the tunnel on the Sapphire, and will be the lowest work ings in shat section, and could be used, for bringing out all of the ores of the mines in that neishborhood. This tunnel. with a short incline, would de liver the ores ot all tho mines Of the Coronado company, and all other ores of the mines of that part of the dis trict, to orc bins on the Coronado rail road, which would be Il great saving in cost over methods now in use.
 THE CAMP
 will be located on the Emerald claim, where ground is now being graded for boarding house, offices, living quar- ters, blacksmith shop, etc. The camp already presents a lively appearance, and when work is commenced on the