Weekly journal-miner., 1916-05-24

and unaided. when there was scarcely
 a frijole about the camp and not q dollar in sight. to drive a l.200fool
 tunnel 10 cut his most promising sur
 face showing at depth of 500 feet
 His friends told him that the under.
 taking was foolhardy. Any mining
 engineer, with ample funds at his
 command. would have started at the
 surface and gone down or the ore
 instead of starting that tunnel.
 The most marvellous part of the
 story is that Renfro did drive the
 tunnel 30 feet with his own hands. In ! 1907 ne bonded his property to an | Eastern syndicate which drove GOO
 feet farther before its funds gave out.
 When the Pinal Development com
 pany took hold the tunnel was in 900 feet, approximately 800 feet from the
 goal. Naturally it decided to com
 plete the work that oli Rentro under
 took so many years ago. The tunnel
 is now in l,l50 feet and is going for
 ward at the rate Of foot day. Al though the face is in extremely hard diabase, in which ore never makes" {" fiecks of green stain are often en-
 countered. This shows that the New
 lear fault. which it is being driven to intersect. is near.
 Three faults cut the Pinal Devel
 opment company's ground from east to west but the Uncle Sam and Helen. lying south of the New Year. have not been developed at all. The for nation along the faults is the same as at the Bisbee. Globe and Magma mines.
 Some work has been done on the New Year fault A tunnel was run in l50 feet and sunk 50 feet in ore. Now another winze has been started only a few feet from the mouth O? the tunnel It is to be continued in definitely and eventually will connect with the long tunnel.
 All the fault filling carries copper but ii is plain to see that most of the | metal has been leacned out The | signs of copper extend even to the country rock. There is not a doubt i that far back in prehistoric ages q tremendous amount of copper was washed below. and when the zone of secondary enrichment is found old Bob Renfro's dream will come true.
 Some distance north of this work ing is the Roman Eagle tunnel, start ed on minor fault that apparently dips into the New Year. This tunnel is now in l30 feet, all through leached ground, and ore shows ten feet wide ir a crosscut. This ore is oxide and carbonate. Since April 10th 25 tons of ii nave been extracted. It averages at least 20 per cent copper and car ries important gold values. Superin- tendent Charles Hollister estimates l that its sale would more than pay the cost of operations since the extrac- ion of the ore was commenced. He s working l6 men. too.
 The location of the Renfro group is : most advantageous. Erman siding. T ,n the Phoenix & Eastern railroad, f s less than six miles away by road. | n an air line the siding is only four q niles distant An aerial tram from f he mine to Erman is among the pos abilities. i
 Vanadium. c
 Less than a mile southeast of Troy a 5 the biggest known deposit of vana- s ium ore in the United States. ]. J l' ullivan held the property ten years C ut it is now in the hands of the |. W l. Vanadium Development Company. apitalized for $75.OOO. This company il ; controlled entirely by Phoenix men. Il I. H. Temple is president: George \ . Stoneman, secretary; ]. !. Sullivan, q reasurer; Dr. O. F. Plath and Peter p lohn, directors. sl The main group includes l3 claims C; ut the company holds ten outlying )caiities. Across the main group Il lts zone of lime and quartz 500 to Il 200 feet wide and traceable for at le .ast a mile. This zone is practically W Il ore that averages 2.60 per cent m anadium. What this means will be etter understood when 1t Is explain fir l that ferro-vanadium. which is 25 tf CT cent metallic vanadium, is now c noted at S2.50 a pound. ra There are 20 different openings on or e ore zone. One tunnel. 200 feet w ng. IS all in ore It is estimated ra at the orc is worth SIPS a ton on gr e ground. Geologists say that the w tai tonnage can only be guessed at of Id is beyond human comprehension. de Erection of l00-ton mill is to be as soon as possible This i'll will reduce three or four tons to ia le and the concentrates, which frr oulI be worth at least 90 cents a so ,und, will be freighted to Erman. sh 70 and half miles away. tic Ii is roughly estimated that the lo' lily product of the concertrator will a,
 worth at least S12,5O0, at the pres. N { price of ferro-vanadium. and that e operating expenses will not ex- CT nOn