Daily Arizona silver belt., 1909-09-05
GOOD INDICATIONS AT KEYSTONE
 $ HIATT
sULPHIDE ORES or COMMERCIAL VALUE BEING OBTAINED IN
 GOOD QUANTITIES
TWO CHURn DRILLS AT WORK
PERMANENT ORGANIZATION OF THE NEW KEYSTONE COM
 PANY NOW ASSURED

Al the mine of the New Keystone Copper company in the Miami zone D men are at work. The vertical shaft is now down 35j feet and crosseuts and drifts are being run on the I5O level.
 On the l50 level crosscut running north is in sulphide ore assaying from 2h to , per cent copper. At dis tance of loo feet from the shaft. drifts are being run from the lateral. The crosscui north of the shaft has been extended for l07 feet and the south crosscut is PIT feet long. The drifts run east and west. The plan that is being followed in the Keystone mine is similar to that laid out for the ex- ploration of the Live Oak property not far away. It consists of exploring the ground thoroughly by crosscuts cutting the property into 900 foot squares. The drifts. so far, have been chiefly in porphyry and other material forming the eapping. The depth reached is not yet great enough to insure the develop ment of the large ore body that is un- doubtedly beneath. On the 300 level plat will be cut and the kind of opera ton carried out on the 150 level will be repeated there.
 The New Keystone Copper company has just finished installing a new three drill air compressor, and by the use of the machine drills expects to make 100 feet week in three drifts At point in the crosseut 800 feet from the shaft on the l50 level it is planned to start drifting east and west some time this month.
 Two Keystone drills, size No. ,. have ieen at work for some time on the Key s:one property and eleven holes have been put down The depth of these churn drill holes run from i00 to 6l0 feet. The average depth of the DOT phyry around the Keystone shaft has been found to be l85 feet. Some of the drill holes show copper percentages of l.50 to 2.50. The drills are capable of sinking for l,500 feet and the aver age made in drilling is l5 feet day. The work with the ehurn drill outfit is attended by some difficulties. at the Keystone as it is necessary to build roads frjm one point to another on the side e. the hill before they can be moved
 Most of the ore found at the Key stone is of the same general charae- ter as that of the Miami mine. The av- craze in copper is about 2.50 per cent for the sulphides and the silieate ore in some places runs as high as 10 per cent.
 At the Keystone shaft, which is B three compartment affair II feet in the clear, all the hoisting is done with a bucket and 2 horsepower gasoline engine furnishes the power.
 The permanent organization of the New Keystone copper company IS now completed. The directors are Adolph Lewisohn. J. Parke Charming. ]. H. Susmann, sam A. Lewisohn, Walter T. Rosen, Jacob Langeloth, Theo. l.. Her mann, Ralph c. Lupton and Herman Cook.
 The officers are Sam A. Lewisohn, president; J. Parke Charming, vice president; J. H. Susmann, secretary and treasurer.
 The field management of the New Keystone Copper company consists of n ger; Louis Wright, consulting engineer and George c. Lawton, superintendent. SAMPLE OF PITCHBLENDE
 FROM MINES OF AUSTRIA