Weekly journal-miner., 1911-10-04
NORTH STAR

The North Star Mining company owns 21 claims 15 miles from Phoe- nix, Arizona, and development is steadily progressing. The ore is gold, silver, copper; property IS reached by excellent wagon road. Judge P. P. Parker is president; W. NJ. Cross, viee-president; F. H. Haines, seere- tary; John Bail, superintendent. The property lies three miles east of the Gila river, and is about two miles east of the boundaries of the Mari cOpa Indian reservation. Electricity will be secured from the Roosevelt dam power plant when it shall be required, neeessitating a transmission line but six miles from Phoenix. Water has been developed in some quantity at the property, but when quantities are required 1t will be taken from the river.
 There are two very large veins, well mineralized. They dip toward each other, so that depth will bring them together. One is a northwest, southeast vein, the other nearly par alleling. One is traeeable for over a mile in length and is nine feet wide. In places the outeroppings have topPled over and settled lower down the hill; and there is a strong offshOot at one point, being capped by a large blowout of ore. This has been exploited to advantage. The ore here, as is the case at every point where work has been done, runs an average of s gold, without consider ing the other values, which often times are as high as 30 per cent cop per and several hundred ounces silver. A erosseut tunnel is being driven be- low this Outerop intending to tap the main vein at 1sO feet of depth, with 70 feet more to drive; this work be- ing important, as it will show that the large surface vein either does or does not make depth and maintain values. Some 5000 feet east of this large open cut has been mined in the main vein, showing fine ore with out any copper at all. There are many other openings, all demonstrat- ing a valuable prospect,
 The other or Papago vein lies in the valley, 500 feet lower from the first, and for this reason a greater amount of work has been done here. An incline was sunk 10 feet and a drift run 30. The incline was in ore n% h1 l,. .1- swelled in, and the drift was run to get around this horse. The horse per sisted for 20 feet of the drift, but at 30 feet the full face is in fine ore and the Assure as positive as could be desired, stronger than at the surface. The ore body in all this work on the Papago is over ten feet in width, carrying gold, silver and copper, the latter in bornite and ehal- eOpyrite, all values averaging over holding has been done with judgment and economy, showing the property up very handsomely. The ore isI ideal for concentrating, the gangue being pure white sugar quartz.
 The country is diorite, sehist, gneiss; but some of the altered rocks have the appearance of syenite, or granite and of andesite-porphyry; 1 there is some lime. The surface is ] considerably broken, but with depth 1. the Assure is in place. In places the alteration of the granite and diorite has left quantities of hornblende and biotite. clearly determinable when |. found with the quartz. There are many ore-bearing stringers running from the Assures. The Assures dip | about 20 degrees. The conditions all !. give certainty of depth, but it is probable that another 200 feet on the upper or loo on the PapagO vein will bring in more copper. At no point does the vein seem impOverish- ed. Water level should bring in en- richments. as the vein is leached at the surface.
 A hoist will be installed on the