Mohave County miner., 1911-07-08
Giroux Soon Ready to
 Ship Out Ore.

Those who have been watching the operating developments of the Giroux Consolidated Mines Co. in Nevada for the past two years are informed by what looks to be apparently reliable sources that developments of the greatest importance are now pending at this property. The workings, so it seems at the 1,200-foOt point of the Alpha shaft, have practically joined the old workings, and the newer work should add considerably to the reserves of the high-grade ore which were proven up several years ago by the striking of high-grade oxidized ore in the Alpha workings.
 The new ore which was encountered in June is an entirely new ore body on that level, although in all probability it is a continuation on the dip of the ore which lies to the northward of the Alpha shaft on the 10th level, where high-grade oxide ores were encounter ed. The new ore is said to be 10 feet in width, and to average over this distance to 10 per cent copper. It is the intention of the management to at once commence the developments of the ore body struck south of the Alpha shaft a few weeks ago. Drifts will be run both east and west from the crosscut, and the ore taken out in development will be hOisted, loaded into railroad cars and forwarded to the shelter at Tooele, Utah, for treat ment.
 The extent of this newly discovered ore body cannot be told until after con- siderable work has been done. but this will be prosecuted as rapidly as possible. The crosscut on the 1,4OO- foot level is progressing rapidly, and is now 42O feet, and progressing at the rate of feet per day. It is expected that the first lead of the ore will be struck within 25O feet, judging from the dip of the lead on the level above. The mine is now making only 45O gal Ions of water per minute, but this will probably be increased slightly as the crosscut progresses.
 When development was being car ried on at the 10th and 12th levels at the Alpha shaft, some ore bodies of good grade were encountered and opened up. The formation here is limestone, with the ore bodies dipping to the southward. On the 10th level the vein is composed of an oxidized section on the hanging wall, and a section oxidized to a lesser extent and carrying lunches of rich ore on the footwall. Two drill holes put down from the l,0O0-ft. level northward of the shaft gave good returns, a vertical hole showing 60 feet ot over r per cent copper and horizontal hole dis closing ore up to l5 per cent copper. A winze which was also sunk north ward of the shaft is said to have en- countered more than 100 feet of 12 per cent ore. On the l2th level, where a short drift was run, it is claimed that there is a very good showing. the ore on this level carrying native copper. It is this last named ore body which should soon be penetrated by the new I,2OO level crosscut from the new shaft.
 The Giroux shaft is being sunk in the hanging wall of the Alpha ore body and should intersect the forma- tion at a depth of something like 2,OOO feet. It is the intention to crosscut to the vein at 2OO-foot intervals, the distance to be driven becoming short CT as depth is attained. The crosscut on the 400 is now more than half way to the Alpha shaft, which point should be reached in about three months time. The ore body however. should be encountered before reaching the shaft, owing to the dip of the vein.