Arizona republican., 1921-09-06
PLAN DEVELOPMENT
 OF KATHERINE MINE
 .AT 700-FOOT LEVEL

Seftn CT 100 feet in the Katherine t.-ne the ore body already opened cfenec therein to a depth of 400 Feet The work will be facilitated ey much more powerful nlan4 of HaAcn4neTy than the one now in use sod is 10 oe preliminary to the cree Non cf an ore-reduction plant of at ae&st 800 tons daily capacity. The cre blocked out on the first three ssvels totals l54.SSs gross tons of an aggregate value Of S2.163.472. This ere tonnage alone is sufficient to see7 Soo-ton min running at ca PAcaty Tor protracted period >irsce these totals were arrived at however. drifting and crosscutting on tne see-fOot level have added appre- c.@hly to the ore reserve: and this t1 turn has been potentially increased nN the discovery of what is termed possible ore in several sections of tho mine
 On the ee0- foot level west a new ere shoot was encountered at a point $50 feet from the shaft It has Teen followed a length of 125 feet and car res geld values ranging from s5.75 70 sis-Ss a ton. On the 900-foot qewei west at point 374 feet from e$e shaft. the extension of the same Encct appears to have been entered. On the 3oe-foot level east additional ore was recently opened between stations S-o2 and s-10. The contin- Warion Of tho proven ore shoot to the east of station 4-1s on the 400 foot level has also been demonstrated since the tonnage estimates above given were made. There is likewise ample warrant for the prediction that the continuation of the east drift on the l0o-foot level to a point over station 2-2e on the second level win result in the opening of a gen e-ouS rcraage of nav ore.
 The physical condition of the Kath- e-tne mine. as thus roughly outlined, Indicates that the value of the known and potential ore reserves at and above a depth of 400 feet is consider selv in excess Of the $2.163.472 esti- mate made by the management sev-. ersi months ago. From a milling ssRndtotnt it would indicate an ore tonnage for reduction much larger than is demonstrated by the ore ac fuanv blocked out: and this without including in the computation the ore tonnage which is reasonably certain to ce developed in the area between the aeo-foot level and the proposed -et- foot level Mining men who are ccrverSant with the ore conditions as cited estimate the present value cf the Katherine mine at about s4,- Nae noe.
 Break of the mine. the blocked out ere has an average value of S14 gold a ton and a width of from Is to 65 feet. on each level. however. there are extensive lenses of bonanza ore. Several Of the lenses on the 100-foot level are six feet thick and average S1oe gold a ton Sixteen feet of the vein on the 20o-foot level averages xf11 gold a ton. On the 3O0-foot isVel the vein averages sS0 gold ton across 2l feet of ore, and carries a six-foef iense that averages s2e3 sod a ton We're the Katherine mine thrown open to the leaser- that industrious individual who fgnctioned SO efficiently in bringing the camps of Cripple Creek and esciafield to the fore-these rich leases would he a fruitful source of revenue and would quickly give the &nswiv established Katherine district ervishle standing as a high grade xcia camp. IL is the policy of the rnsraEcnent however, to develop the mine without recourse to the leas- inr plan and to break the ore to an average of sI4 a ton for milling pur- poses.
 Geoxraphicany. the Katherine mine Is located in the center of the Kath- crime district which, in turn, is To- cased fn Union Pass. about 35 miles from Kingman. The Katherine vein, known as the mother lode of the dis rrlcr is a true Assure encased in y walls. Geologically these conditions Indicate the continuation of vein and values to a great Oepth. The course of the vein is approximately southwest northeast It is intersect- cd hy numerous east-west bearing veins which appear to be quite as well rfnerHlized. The ore Is a quartz replacement of calcite and is free milling Figures compiled by the Katherine management place the mining and milling cost of the ore at from ss to se ton.
 Approximately three miles north east of the Katherine mine an east west bearing vein s6 feet wide was recently opened in the Gold Chain nine About three miles southwest cf the Katherine mine, in the newly established camp of Tristate, New, located on the west bank of the Colo rato river the continuation of the Katherine vein Is showing Is feet of ore or the Nevada Katherine prop errv. On the adjoining Prince prop rrsv an east west bearing vein car ries ore having a value as high as siSo gold a ton The presence or rsaV ore in the east-west veins dem nnz.rafes that the Katherine district fs not a one-mine camp. Further rroof Of this is supplied by the pres e-ce of pay ore in the Roadside, Thumb Butte, Frisco and Sheep Trail mines and by the discovery or Tree zold In the veins opened of late on The Adams and Sunbeam properties, sn or which are located on veins raralleling or intersecting the kath- s~ine vein
 The Gold Chain ore corresponds closely in value with the Katherine ere A drift is now being extended 10 the east in the foot-wall of the Cola Chain vein at a depth Of 1O0 s.et in the direction of the Comstock- -o-Solidated. or Curtin Mahoney vroperty. Crosscuts are to be driven through the vein at 100-foot inter- ~a1S This work is to be followed hv the sinking of the shaft to depth oF 900 feet. where a level will be es- s-Niished and the vein again crosscut and developed. Competent mining -,sn-<uperi tendents. engineers and me Nke-Who have inspected the Cold Chain mine, believe it has an r-e-vieidinE future equal to that oi .ha bonanza Katherine mine.