Bisbee daily review., 1911-08-11
(By Chas. \. Densmore.l )

rom Nlnkelmans which IS on the Southern Pacific railway. There are ? well-delevoped mines in the holding; a 25e-ton eoneentrator: power p7anl where electricity is generated for mining and milling and general camp use. The camp Is I2 miles from Nam moth, which is on the San Pedro nv CT. and where is abundance of water at all times for all purposes. rail way is to be constructed to Mammoth hv the company. the Southern Pa eific having contracted to connect with this line by building from Winkelman to Mammoth. A large concentrator is to be built at Mammoth and the ore will then be sent by rail from the mines to the mill, and the small mill on the property will be utilized as an auxiliary and test mill. A smei' ter was to have been built; but as inc Ray Consolidated will construct q shelter at Hayden, and as they de- sire the Copper Creek ores to charse with their own, the Copper Creek com pany has given it up. Frank J. Sub lev is president of the company; Hen " NJ Hall treasurer; Chas. H. Robin son of Minneapolis first vice president; Hon Inc. E. Wright of Tucson secre- tary: R. Roy Sibley. general manager with headauarters at Los Angees; G. s. Gelser superintendent. The man agement is conservative and excellent and the work reficts credit on all con cerned.
 Made Much Money.
 The Copper Greek country came in to prominence in the early sos, when strikes were made of very rich silver copper ore: and much money was made. The veins. however. were small and often pinched with depth, and wherever they did not pinch out, the size of the deposit did not in- crease. So the camp was practically abandoned for some time. Frank Sib- ley. through a Yaqui Indian, learned of a vein of very rich glance and in Yestigated. The result was he took over a number of properties, organ ized a company, and began operations on a good scale. The experience here was in the early days-the small vein did not apparently lead to any thing more promising, and would not pay for deeper work In looking over the country, however, Mir. Sib- ley discovered that there were a number of blowouts or pipes of brec- ciated material heavily copper stained. While this was not at that time deem ed ore-making material, it was thought of sufficient importance for some exploratory work, and tunnel was driven to tap the ore at some depth if it was there. And it was Other tunnels were then driven on similar croppings, an a number oi shafts were sunk. The result was a demonstration that if the breccia carried the values at the surface il did at depth, and that with from 10c to 300 feet of depth the values in creased somewhat, owing to the sur face having been leached. l went through the underground work or the Old Reliable mine the other day with Superintendent Gelser, and found a large body of ore developed on about the 300 level. This ore is in the breccia (composed Of frag ments of diorite and of quartz, the filling or cementing having beer done by copper sulphides.) The ground is blocked out in l00-foo sections on either side of the tun nel. and Walter Harvey Weeds es timated in this ore body 200,00i tons Of 3.75 per cent copper ore This ground will easily be workeC b,v the caving system. 4 tunnel was run into this same blowout 100 fee deeper, and the lower tunnel tappeC the first, and will be driven oI about 109 feet to get the other.
 Ore For $50 Feet.
 The work done On these breccias both by the Copper Creek and th' Calumet & Arizona companies. hai demonstrated that the ore goes t depth beyond $50 feet (This i the depth of the deepest shaft a this time, and the values are main tained to here at least It ha. been stated by Dr. Weed and Pro fessors Probert and Burkey that th' ore bodies will maintain stabilit. to greater depth, and this Is tn belief of the companies operating It is a peculiar fact, however, tha the ore of commercial value lie in these breecias or in small seam or veins. The layers Of rock vii be mineralized, but not to exten of being workable, unless on tn most meager -highgrading'' plan The C. & A, in fact, in sinkinl it's deepest shaft, was in good orr all the way, as were the iaterals- but only to the extent of the SUI face showing of the breccia pipe En one such pipe of the Coppe Creek company the surface was 5 feet in diameter-a shaft showed to be the same at depth Thus the stability of the deposit wa demonstrated leaving little for cor lecture and no room whatever fo expensive and possibly futile explcl atory work beyond these bounds The ore is @ sulphide, carrying wel in iron; and there is some higl grade in t. It is an ideal concen trating ore; and with mill hay ing inadequate facilities because o insufficient Iaunders a concentrat was made Of excellent tenor, an the tails were quite clean Of cor Ter. The drawback in this cam. is lack of water. There are nun erous springs. however. which ma be developed to advantage, and th' San Pedro river. 12 miles away furnishes ample for whatever pun
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