Arizona weekly enterprise., 1881-12-03
It's History and EoeaitOn-Th' Present Developments and
 Eutare Promise.

hnOWlng ladb a history dlV uSsStAt'i of the famous Silver King mine would be interesting to the readers of the ENTER PRISE, we accepted an invitation from the managers and visited the property last week.
 The mine is situated in a small basin on the southwestern side of the Pinal mountains, 36 miles northeast of Flor eace. This basin is surrounded on all sides, except the west, by mountains which rise to such height that their sunlmits seem to nestle against the over hanging sky. The mountain on the south are capped with baaaltie lava, and it's sides are perpendicular. To the east and north tho mountains are less precipi- toua and narrow trail winds over them in the direction of Globe City. The ba- sin ia entered from the west by good natural wagon road of gradual ascent from the Gila river. The Silver King mine To- cation is made upon a spur or upraise in the basin at an elevation of about 200 feet from the bottom. This upraise is conical in shape and upon it's apex the mine was discovered by Charles c. Mason, Benja- min ". Reagan, William H. Long and Isaac Copeland, on March 2l, 1875. On the 3oth of June, 1876, Messrs. Copeland and Long sold their half interest to Messrs Mason and Reagan, and on the 9th oi January, 1877, MT. Mason sold his half interest to Col Jas M. Barney. On May 9th, 1877, the Silver King Mining Company was incorporated under the laws of California, with capital stock of ten million dollars, divided into one hundred thousand shares of one hundred dollars each. The principal office was established in San Francisco with Jas. NJ. Barney, Benj. A. Barney, Beni, w. Reagan, Geo, L. Woods and Wn. II. Booth as trustees. On the 9th of May, 1877, James NJ. Bar niy and Benj. w. Reagan deeded their entire interest in the mine to the corpora ton and the stock of the company was T change Board on Nov. 9th, 1877.
 THE FORMATION.
 The country rock incasing the vein is granite of the Azoic age. The matrix is quartz. Lime and magnesia are found combined with the quartz in the gangue, and this matter carries silver in all com binations known to mineTalogists. In some portions of the vein salts of, and basic copper are found; also sulphide and car bonate of lead with traces of zinc, arsenic and antimony. Now and then in the lower levels gold is found, but not in sufficient quantities to warrant separation from the silver In the four hundred foot level large deposits of polybasite are found. This is very rare and very rich ore, consisting of silver, sulphur and an timony with some copper and arsenic. Il yields over $20, 900 in silver to the ton. In color it is iron-black and can be cut with knife the same as black sulphurets The King is the only mine in the United States in which this character of ore ha been discovered It has been found il some districts of South America and il Earope In stoping from tho four hun dfed to the three hundred-foot level thi are ore sas encountered all through tn ,,-e boas, and it is also found in the sevel hundfe1>foot level now opening out.
 THE OLD WORKS.
 At the discovery point an open cut TO feet long, 60 feet wide and 80 fee deep was made and from this cut man thousand dollars worth or ore was taker At the bottom of this cut an incline shai was sunk to depth of 46 feet, runnin down near the foot-wall at an angle ( about forty-fve degrees and passiu through ore all the way, some of whic was very rich. At the bottom of this il cline drift was run south sixty degre, vest, a distance of forty-seven feet, ar shows very rich ore all the way. Al other drift was run from this point in northerly direction 32 feet and uncovert good ore along the west side. Near u bottom and on the west side of the inclil large quantity of pure native silver mix, with silver copper glance, antimonial s yer, ruby silver and argentiferous galen was taken out. This ore after beil sorted averaged Sl 900 per ton by assa From the level at the bottom of the i cline shaft, winzs was sunk to dep of 257 feet from the discovery point, al is in good pre- This winze is the botto of the old workings. There is still a wo derful amount of rich ore in the o workings from the surface down, but it re raetory, and at the time these wor wore abandoned, tho company had not cilities for treating it. Hence the ope ing of the new works.
 THE NEW WORKINGS
 Start in about 200 feet west and belC the old ones and are complete in tho appointments. A two-compartment V, tical shaft has been sunk to depth
 nearly eight hundred feet and is st sinking. This shaft is four feet by to
 eet in each compartment; is splendid timbored and provided with safety caq operated by steam hoisting works At depth of 252 feet a crua5 ut was msC