Arizona weekly journal-miner., 1902-05-28
FACTS ABOUT
 UNITED VERDE
COMPILATION OF INFORMATION NOT
 GENERALLY KNOWN.
United Verde is Rated as One of the SIX Biggest Mineral Producers
 10 the World.

1uO OOPPCA hduu DOOh, udu- ual of the copper industry of the United States and foreign countries, compiled and edited by Horace J. Stevens of Houghton, Michigan, is before us. It is a work that should be before every individual who is either interested in or follows the pursuit of mining. It is a volume of 400 pages, clearly rendered and care fully compiled. From its pages we take the following data of the United Verde Copper company, and as this particular corporation is located but a few miles from Prescott, with the kind permission of the author, the following excerpts are published con- corning it:
 "There is probably no other mine in the world about which so much rot has been printed The policy of semi-secrecy maintained by the man. agement has stimulated guessing, and sundry newspaper writers have allowed their fancy to run riot. Only a few months ago a mining publica- tion that should have been better in formed told its readers that Senator Clark had refused on offer of $500 100000 for the United Verde. Inas- much as this sum would be more than fair price for the ten best cop per mines of the world, and as the United Verde has never paid as much as one per cent annually on such a valuation, the story is self-evident lie. These grotesque exagger- ations are unnecessary, for the United Verde is, beyond question, entitled to a place in any list of the worlds half dozen best mines.
 < The stopes are of such phe- nomenal width that the mine has been opened to a depth of 600 feet only, and above the 600 foot level there are reserves sufficient to main tain production at the rate of 40, 0,0OO,- 900 pounds per annum for some years, while diamond-drill borings have shown the ore body to extend at least 2,000 feet. The mine is a mon strous lens of sulphide ore, and is practically a single stope, though necessarily subdivided to leave pillars for support. The very immensity of the ore body is proving a source of great trouble to the management, as the smelter and other important buildings have been built right over the mines, and repeated caves have done much damage to the works on the surface, as well as drawing a number of shafts.
 "The ore body is so rich in sulphur that considerable heat is generated, and more or less trouble is had from spontaneous combustion, Owing to the mine consisting of a single man. moth lenticular mass of ore, such fires are serious, When caught at in- ception they can be put out, other wise it is necessary to isolate them by masonry bulkheads and allow them to burn out, or die out from lack of oxygen.
 Senator Clark has an exten- sive mill in New Jersey, where much of the United Verde copder is manu- factured, after refined electrolytically.
 "The Calumet & Hecla is difficult mine to get into, but the task of se- curing access to that property is easy compared with the job of geteing un- derground in the United Verde. Only a written order from Senator Clark will permit a visitor to go into the mine, and such orders are a trife more common than hens teeth. Min ority shareholders in the company have appealed to the courts in vain for the privilege of going under ground.
 "Production of the United Verde, in pounds of refined copper, has been as follows for the past five years: