Arizona republican., 1909-12-27

I anu SOuNiltTH tTODDiuR lN- ing parallel and from 100 to 15O feet apart. There is white porphyry in | trusion between also carrying mineral | ization and it is the theory that both ! reefs merge into one at depth. Cross dikes at intervals seem to have served
 to precipitate the greater values in the
 neighborhood of their intersections. | About year ago the Alvin Develop | ment company was formed by the Michigan men who after careful ex-
 animation took over the Ultimatum | property of Mir. Hall and his asso- | ciates. During the last year they have l expended about s27.000 in development work on this property and have fully | satisfied themselves from what they
 haze found and from what has been
 disclosed in the workings of the other groups named. that it is a real copper
 district beyond any donbt with heavy by-products of the precious metals. in
 certain places,
 This conclusion has led the gentle
 men to the organization of the Tank
 Pass Consolidated Mining company which takes over the Ultimatum. the 1 Copper Flat and the Carbonate Hill
 groups and is negotiating for the Cob
 ralla which has already been consider
 ably exploited The capital stock of the
 new company is s3.OOO 900 and the of-
 ficers of it are A T Pryor. president:
 Ward B Smith, vice president and
 William Calverly. secretary and treas
 urer. all of Houghton. Mich. Mir. Hall
 is the superintendent of operations at
 this end and has about fifteen men em-
 ployed, all that can be worked to ad-
 vantage on the Ultimatum at the pres
 ent stage of exploitation.
 That is about all there is to say
 concerning the company conditions
 and plans except to add that the gen
 tlemen have been giving the project
 close attention for year and during and including the boom in that section
 last spring They had nothing in com
 mon with that but have been quietly
 pursuing a policy of copper investiga- tion and without excitement or undue enthusiasm. believe they hove found the place where a monster copper dis trict can be opened with the invest ment of a reasonable amount of cap ital. This they expect to furnish or secure. and proceed to add one more big copper district to the mining re- sources of Arizona.
 A brief resume of the conditions on the properties. as exposed by develop
 ment and prospecting and which have led the gentlemen to their conclusions will be interesting. The Alvin shaft on the Ultamatum property is down 14o feet On the 100 foot level drift ha haar in, rt, a feet of low grade ore. a sort of an iron gossan. There are small valSes in both gold and copper There is also crosscut of 147 feet on the same level. passing through Ieached and broken porphyry. Though this is all low grade the fact that it carries val ues at all is satisfying and bears out the theories of the promoters. The shaft iS vertical and sunk on the up- per lime reef. crossing the lower lime :. reef which dips at an angle of about 25 degrees. The crosscut is north from the 100 foot level.
 The main or new shaft on the Car bonate Hill group is an incline sunk on the lower lime reef ar foot wall and is down 65 feet being started just month ago. The lime reef on the sur face is about B feet wide. Already i the shaft is in sulphide ore. Thousand pound samples tested at Fl Paso from a little drift at the depth of 26 feet returned BE per cent copper. s9 gold and 5iH ounces of silver The only explanation of sulphide ore so near the surface is that these workings are near a big gulch and it is believed that | much of what was formerly above this 1 deposit has been eroded away. Recent | ly there was taken from shallow | winZe in the drift some fine samples | of glance ore that ran from 1S to 20 | per cent copper. s30 gold and 12 or 1f | ounces in silver The Carbonate Hill | shaft will be pushed to the depth of | 100 feet as quickly as possible when | drifts and crosscuts will be run. Con tracts for this work have already been let An air compressor to furnish DOW CT for five drills will be ordered at | once for use in these workings. On . the Carbonate Hill there is also local ! diorite intrusion between the porphvry and one of the lime reefs. It is ex- pected of course that the greatest values will be in the lime itself and it is reasonably hoped that at depth the two big reefs will be found to be one 1ications are more favorable to that