Bisbee daily review., 1906-06-17

sist mostly of grass root tunnels. open cuts and 20 and 90 foot shafts, may still be seen. A number of the old arrastras are still in evidence along Gold and Bonanza gulches. It is Impossible to present reliable fig ures as to what the production hith- eTto has been, but local estimates place it at a number of tens of thou sands of dollars.
 The gold quartz occurs in Assures containing usually more or less linn onite, with which the gold is associat- ed, the Assures making usually at contact of porphyry and sedimentaries or in the porphyry and quartz-por- phyry dikes.
 Tne bulk of the developments has been carried on in the doing of the re- quired annual assessment work. and for this reason has been very unsys- dramatically carried on, it being the o, feet of the owners to simply sonse out the richer pockets Of exceptionally high grade ore, and leave the balance Of the lower grade milling ore either on the dumps or in the workings. The Buzzard's Shadow property owned by the Home Copper Mining company, which is situated just below the june tion of PinkaTd and Gold gulches, has been the most developed. It is a well defined Assure between limeStones I and porphyry. of a width of from 12 tc 20 inches. and has been productive of | several thousand dollars. A depth of approximately 100 feet was attained and at a depth of 15 feet a vein of
 about three feet of SiO milling ore has been considerably opened up: a small streak of this vien ran as high as q ounces gold and 56 ounces silver In | treating the ores with the old arrastras an abundance of water was secured | from the creeks or from shallow wells | in the arroyoS.
 In a general way the Clifton Morenci gold belt may be considered as having an extent of 12 by 15 miles, lying to the north and west of the proven cop per areas of the region, extending from the Eagle river on the southwest, to the San Francisco river on the north. l east. The Copper mountain, or Nor. enci, districts gold district lies to the west of San Francisco river. h this latter locality are located the Sier. ra de Gro. Crawford, Polaris and Ari. zona gold properties, which have been iCOnSlueTdUiN ueNelOptu. AuTlfSTOuS ] Assures on the Chase creek divide to the southeast of Morenci, where are located the Hormeyer and Clifton King mines, and the Crawford mines to the north of Metcalf, while some, | what isolated to the south and nortt respectively of the main gold belt, may | still be considered part of it.
 The gold ores generally are quartz. porphyry, heavily iron stained. asso, ciated with more or less lead in car. bonate of oxide and sulphide state, and as a rule are readily amenable to the | malgamation-concent process. In many places it is possible to sort | shipping ore of a high grade of from $50 to s200 gold. As rule the silver contents in ounces are about half that of the gold. The percentage of lead varies from trace to Is per cent, ex | cept in the case of galena, where 1t is much higher; for instance, from the Stevens group of the Gold Belt
 |. & R. Co. and from the Lakenar property number of tons of galena
 ore, running 60 per cent lead have
 been mined and shipped. The gold
 and silver values in these ores amount
 ed to from $20 to s100. The per
 centage of copper in the Morenci dis
 trict ores is, as a rule, insignificant
 while in the case of Clifton gold belt
 they are important, notably at the property of the Polaris company.