Show THE ROCK CREEK GOLD MINING CO lying on the eastern slope of odthe the ali t divide separating rock and willow creeks just below the brow of the hill is the property of the rock creek gold mining com company which is situated about two miles northeast of the town of pearl the property consists of three patented claims a and nd is better known by the name of the el paso mines the property was originally located by peter roston poston and his brother tom who sold it to grenville M mitten formerly of iowa for the present company which is officered by E D smith of pittsfield maine C C stinson treasurer and general manager and mr mitten superintendent of pearl idaho the company has been incorporated orated three years during which time three tunnels comprising so some m e splendid prospect work have been run the longest tunnel reaching to a length of 1000 1000 feet running on the vein the entire distance this tunnel is the longest that has been driven the ore dve averaging raging from twenty to forty feet in width while the first work or the upper tunnel has been driven in to a distance of feet and the same character and magnitude uncovered on the upper level appears in the 1000 foot tunnel in its entire length the company made a shipment of the ore ore to boise for experimental treatment which yielded 1050 per ton mine run of oxidized ore which concentrated thirty into one the concentrates carrying values to the alO of per too there are now w 1000 tons ton of ore on the dump this being a blue sulphide L quartz which concentrates about thirteen into one and carries the nominally phenomenally phe rich values that characterize this coming 1 I great mining camp besides the two exploratory tunnels ment mentioned mantione ione d the company has started a long crosscut cross cut tunnel on a lowel level for depth and already it is in a distance of about feet and the work is an evidence of the splendid mining the company proposes to do the tunnels above mentioned are good large ones for all ordinary mining and yet this lower working tunnel is vz in the clear with a large drainage beneath the track it has been the intention of the company to erect a concentrating mill at the mouth of the 1000 foot tunnel this year and treat the ore with the water from the tunnel workings but with the lower tunnel which will cut the main ledge at not less than 1500 feet now in the process of driving the mill erection has been abandoned for this year or until the deep tunnel will have cut the ledge and opened up the ore for continuous treatment the mill will ifil be erected next year at the mouth of the lower working tunnel which is located on on the property of the granite stake company made up of the same people comprising the rock creek gold mining company I 1 the granite stake consists of a group of nine claims adjoining the el paso on the north and is at this time undergoing the process of incorporation after which a system of exploratory development will be decided upon also undergoing the process of incorporating is the payette river mining company which will be the same in its personnel as that of the rock creek gold mining company and the property upon which the incorporation will be founded is a group of four claims lying directly north of and adjoining the el paso while still to the north it adjoins the property of colonel dorseys pearl mining companas comp anys ground and its future exploration and development will be determined after its organization the rock creek gold mining company has supplied its officers and workmen with substantial facilities for comfort and plenty they have erected good commodious and sufficient building for all the present needs of the company and are even at this time placing a telephone in the office of the company which will connect them with pearl boise other mines and the outside world and within a very short time it is intended that electric power will be installed and power drills added as well as lighting the whole of the mines and buildings by electric lights the same to be secured from the payette river electric light power company which has recently completed a power line from its plant into the town of pearl which crosses very near to the working tunnels of this company this company is very ably as well as judiciously managed and is a very close corporation practically all the interests being held in the east and by the officers in charge of the mine development it is admirably located for water to run a mill of large capacity 4 0 a el hajjo mine tunnels and office building |