COPPER DEPOSITS IN ARIZONA 



203 



largest producer in the territory, all the 

 districts which have since been active 

 began contributing their quota. We 

 have referred to the early activities at 

 Clifton. 



The United Verdi deposits in northern 

 Arizona had attracted attention before 



even earlier than the Warren District; 

 but neither Clifton nor Globe have been 

 as prosperous as Bisbee, partly because 

 of the highly silicious character of their 

 ores. To render these ores fusible a 

 large addition of fluxing material had to 

 be added to the furnace charge, reducing 





Map of claims showing the liorizontal distribution of some of the proved bodies of ore. Tlie 

 Copper Queen Mine is represented in tlie upper left hand corner 



actual mining was commenced at Bisbee. 

 Ever since their development they have 

 yielded an ore of exceptionally favorable 

 smelting composition and richness. An- 

 other district, that of Globe, which is 

 still prominent as a producer, had been 

 discovered and superficially explored 



proportionately the percentage of copper 

 and involving a heavy loss of copper in 

 the slags. Moreover, the Globe ores 

 continue to be still deficient in sulphur, 

 an element essential to economical smelt- 

 ing. On the other hand Bisbee had the 

 advantage over its rivals in the South, of 



