Bisbee daily review., 1920-03-14
N|CHTHAWK HAS NEW SHAT I IN
 RICH IRE EDDY
Local Mine Gets Showing Indicating Continuation
 Of Boras Ledge


 Development work that promises results of the greatest importance is now in progress in the Nighthawl mine near Don Luis The recent proving of the -Boras property, ad joining the Nighthawk, by drifting into the ore body on the 52S foot level has brought the properties il that end of the district to the fore front as strongly indicating the de velopment of some more big produc CTS in the Warren district.
 The most recent development il the Nighthawk is the strike of ore iI the shaft. The shaft is in the pro cess of being sunk 100 feet further from the $50 to 750 foot level. with the intention of drifting into the ore body again at greater depth. At 67C feet some very good ore was struck in the shaft. The body of commercial ore was about 12 feet thick, averag ing better than per cent The i'm. portance of striking ore in the shaft is in the fact that it had not pre-. viously been encountered there and may indicate the presence of a here tofore unexplored ore body. Some of the ore found in the shaft is of high grade and it is all similar Nb ore that is being taken from the Boras prop erty. It is quite different in struc- ture from the other known ore bodies of the Nighthawk.
 It is not the intention to inyesti- gate this ore further at present but foot level and drift into the ore bod ies that have been developed above and to the east.
 From the $50 level, the previous depth of the shaft. a drift has been run in an easterly direction cutting the general line of faults which run north and south. Cross cuts have been driven at right angles to the drift. This drift apparently runs under heavy iron capping. The capping carries small values but it is beneath it that it is hoped to develop a body of good commercial ore. Some of the ore partially developed in the $50 drift runs very high. The best specimens are taken from the floor of the drift rather than from above, and everything indicates that it is the extension of the ore bodies under meath the iron capping that will even- tually produce the best ore and the largest quantities. It is with this in view that the shaft is being deepen ed to drift into the ore body from the 750 level
 Stoping done so far has been most ly between the 500 and 500 foot lev els and some ore has been taken out extension of the ora bottles in these levels seems almost certain. The $50 foot drift will eventually connect up with the 52S foot level of the Bo. ras mine for the mutual safety and air supply of both properties. The collar of the Boras shaft is about 100 feet lower than the collar of the Niehthawk. The $50 foot Nighthawk drift Is now headed for the Boras winze. lt is considered likely that the two companies are working in the same fault.
 The Nighthawk company started operations three years ago on the 27th of this month. About 1000 tons of ore have been shipped in that time, averaging roughly between 1-2 and ' per cent copper and [ 1-2 ozs. of silver. Some values have been very much higher. About coco feet of development work has been done, 1000 feet of this on the $50 level. The lease is still good for four years
 The ore showing in the $50 level is largely of the red oxide and cuperite variety and is apparently going down strong. The ore shipped from the upper levels has been largely azurite and this is also found on the G5O level.
 James Mckenua, superintendent of the mine. is conservative in anything he has to say with regard to its flu ture and refrains from making any positive statements as to what may be expected from development work going on. He said. however. that the presence of d big ore zone and a bigger mineralized area has been pretty we'll demonstrated and every thing looks favorable for the pres ence of big body of commercial ore in the lower levels.
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