72 



KUomltres. view IS obtained of the U-shaped flat-floored 

 valley. The area traversed between Grand 

 Forks and Phoenix, via Eholt, is underlain 

 by several members of the Rossland group, 

 including limestone. Eholt is the junction 

 point from which a branch line goes to Phoenix. 

 About three miles (4-8 km.) south of Eholt the 

 railway crosses the copper and magnetite 

 deposits of the Oro Denoro and Emma mines, 

 the origin of which is similar to those at Phoenix. 



PHOENIX [6]. 



Introduction. 



The production of the Boundary district (including 

 the Osoyoos Mining Division) from 1896 to the end of 

 1912 amounts to 13,744, 338 tons of ore, containing 938,125 

 ounces of gold, 5,035,953 ounces of silver, and 334,874,378 

 pounds of copper, having a gross value of $73,312,913. 

 Approximately 60 per cent of the tonnage was furnished 

 by the mines at Phoenix. 



The copper-bearing portion of the Boundary district 

 occupies an area of about 25 square miles (62 sq. km.) 

 and includes the important centres of Phoenix, Greenwood 

 (Deadwood) and Summit. It was in 1891, following the 

 discoveries at Rossland, that prospecting was actively 

 carried on in the three above named camps. In that 

 year most of the ground subsequently proved to be produc- 

 tive was staked. The low grade character of the ore 

 proved a great disappointment which was partially 

 offset by the discovery that the ore was almost self fluxing. 

 The field, however, was open only to large companies 

 with financial resources beyond those of the average 

 individual. The two companies at present operating 

 were early in the field; the Granby Consolidated Mining, 

 Smelting and Power Company confining its attention 

 CO Phoenix, and the British Columbia Copper Company 

 operating at Deadwood and Summit. The smelter of 

 the former was built at Grand Forks and the first furnace 

 blown in in 1900. Its capacity has been increased from 

 1200 tons to between 4000 and 4500 tons per day. The 

 latter company commenced smelting at Greenwood in 

 1 90 1. The present capacity of its furnaces is about 2600 

 tons per day. 



