The weekly Arizona miner., 1880-05-21
GREAT ORE BEDS IN noHAvE COUNTY
Facts and Figures.

figure. The brief mention in papers pub. fishing mining news has not generally been hsttering. The failure of the Blackberry and suspension of work on the Keystone mines, has seemingly destroyed public con fdence in the deposits of this section.
 If your space will permit desire to say something of the district as if appears to a practical miner, without employing that vague and inexplicit manner of statement usual, when the plain facts and figures will not bear inspection; and without the most remote intention of pandering to any in- terest.
 The general tone of mining correspon- denoe shows Ilain intent to say ibe best possible for the miaes and their manage. ment, thereby misleading the public whose interest if behsoves mIne owners and all others with e care, tor the credit and pros- perisy of camp, to protect. For thirty miles in length the Cerbst mountains con- tain innumerable veins of gold and silver bearing quartz and argentiferous gslena Mineral Park is about the center of this mineral belt. Twenty-Five miles to the east are the Peacock mountains, in which the Blackberry and other mines are located while just to the southwest lies the great Hualpsi range, Tn which are some immense deposits at low grade ore and small ledges sf very high grade. Although the ores of the district are base, it is an undisputed fact that they are being worked to 95 and s6 per cent by the mil at this place. Miners re- oeive 80 per cent. of the assay value of sil- yer ores, less I5 per cent. for shipment and discount on bullion, less again $50 per ton for milling and s2.j0 for pulp assay. Ac- cordisgly, sl50 ore delivered at the mill nets the miner $49.50 per ton; s90O ore nets 3s3. 50, and q 900 ore nets SG27.50, out of which the miner must pay for hauling, and material at the following rates: Powder, per 30 ib case, sG2l caps, per 100, s2.5O; fuse, per 100 feet, 8; steel, per pound, 4oc, and ten dollars per week Tor board. For ores containing both gold aud silver, 70 per cent. is paid, instead of 30 per cent.
 Ia a ramble through the mountains, miners are generally found al work on small lodges of rich orc, but inquiry about their locations adduces the fact that they have "big lodes" of lower grade ore, which they have held year after year, awaiting such facilities for reduction as cheap trans portaiion wilt bring; while the Small strata (which will generally prove to be feeders 10 the main lodes), milling often $500 to q, ,50O per ton. are worked as a means of securing temporary living, although often times resulting in something better. Men who have had long experience in the mines of Nevada, CalIfornis, Utah and other min ing sections, uaheediDg the stampede" 10 Colorado and Tombstone, are patiently waiting, despite high prices and hard liv- ing, the recognition they are sure must come sooner or later to this district.
 Several large ledges, which the writer has thoroughly examined and tested by a num- Der of assays, show from two to six feet of ore in compact body, free Of waste, that will mill from $J0 10 $S0 per ton, while other mines with vein formation of from 100 to 300 feet in width show large strata agpregatiug ten to twelve feet in thickness, some of which will mill much higher. In short, the surface prospect here is quite aS good as in tombstone and many other pros pering camps, and il the figures do not look so large i; is because they represent the milling value of the ore and not the value Of picked specimens. Any kind of assay can be gotten from almost any mine, but a report of such assays gives no idea what. ever of the real value of the ore body. On hardly any of these mines is there shaft % feet deep, the assessment for each year having been done by gouging out the sur f.ce ore from some rich strata to. make wages for the work. now propose to shsw that the Keystone and Blackberry mines, without eyer having been properly pros pecsed, have 6 record as bullion producers inst will compare favorably with most divi- .iesd peying mIncs, and that they caa he rssde to pay handsome profits, even with the high prices now ruling here; while there are as many lodes that from surface lndlca' tions will produce much better and are bet fer adapted ;o the requirements of con- panies operating on large scale.
 The Keystone mine has depth of 225 feet, ~iib ten inches of ruby silver ore, ,nilit.g about SEQ per ton, in the lowest levels. and two small strata of similar gre in 6 cross-cut to tue foot walls at the same depth. The total amount of ground stopped in the mine measures 10, iOe feet. The total amount of bullion produced Is s2s5,OOo and there Is less than 100 feet of levels out side of the limits of the stopes, showing that nearly all the ground prospected Of opeae.. produced ore. The north or work isx shaft ef the Blackberry mine is 210 feet deep. with tea 10 twelve inches of ore at the bottom. Deepest level 200 feet, south level showing one foot of ore milling s25O. The north level shows continuous streak Ioi good ore, two feet thick. The ground above these levels has been stepped from the sur fs.e. The last orc taken from the mine was sold under execution, and milled st Mineral Park ovcr $260 per ton. The total amount of ground stopped in this mine is 2l.0O0 square feet, and the bullion product S4S5,- O0o, from 2,450 tons of ore. The value of the tailings, since sold under executios, is SIS % per ton. The length of levels run in barren ground docs nor exceed 300 feet. It will thus be seen that the ore body -axer,re.i more than one foot in thickness