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new hoist house and compressor building <br />D. Repair head frame <br />,• 2. Underground Rehabilitation <br />A. Install water purification plant <br />B. Retimber shaft <br />C. Rehabilitate first level station <br />D. Rehabilitate Levels 1 and 3 <br />With the exception of some outside contracting to install <br />safety hoisting equipment, repair and construct necessary <br />buildings, and repair and relocate the mine access road, the <br />above work can be accomplished with a crew of four men in <br />approximately seven months' time. Contracting and company <br />work would proceed simultaneously. Upon completion of this <br />work, mining of two of the richest ore shoots in the mine <br />could commence from the third level extending upward on both <br />the Cash and Freiburg veins until the limit of the early-day <br />workings are reached above the tunnel level. <br />Following the completion of this work, the lower six levels of <br />the Cash mine will be dewatered, rehabilitated and connected <br />with the nearby Who Do mine. If ore is found below the ninth <br />-. level of the Cash and Freiburg workings, the shaft will be <br />sunk an additional 300 feet and drifts extended for at least <br />1,000 feet to the northeast on three new levels. Additional <br />underground exploration will be conducted to the southwest, <br />where the Cash vein intersects the Hoosier reef approximately <br />650 feet southwest of the Cash shaft. A westward extension of <br />the 746 foot level to the Hoosier reef will cut nearly 500 <br />feet of unexplored ground in a highly favorable area for <br />finding additional ore reserves. <br />Highly selective mining is essential due to the narrow width <br />of the veins. Resuing, or stripping, has been the only suc- <br />cessful mining method employed in the Gold Hill mining dis- <br />trict. Although there are cheaper mining methods, the extra <br />rock handling and milling costs and the dilution of the ore <br />with shattered wallrock will more than offset the lower mining <br />costs. <br />In resuing, backs are taken down above the drift, stope-timber <br />put in place and a narrow breast (or row of upper holes) is <br />blasted in the waste hangingwall rock for the complete length <br />of the stope. After this has been blasted, a floor is laid <br />and holes that have already been drilled below the vein on the <br />footwall are blasted. This breaks the vein and the ore is <br />mucked out to chutes on 50 foot intervals. As much sorting as <br />possible is done underground to extract the waste from the ore <br />before lifting and handling it on the surface. <br />. The Cash mine will utilize conventional types of small mining <br />" equipment such as air compressors, jack leg drills, stopers, <br />• mucking machines, slushers, and electric trammers and ore cars <br />set on iron rails. <br />Ore will be stockpiled and sorted on the southern end of the <br />Cash mine dump, in the same area that was used in the 1958- <br />1964 period of mining operations. Because the resuing mining <br />method does not generate a great deal of waste rock, not much <br />waste rock will be added to the Cash mine dump in the produc- <br />tion stage of operations. Any waste rock brought to the sur- <br />face during the later exploration and development stages will <br />be disposed of on the western surface and face of the mine <br />dump, where it cannot be observed from County Road No. 89. <br />Of special significance is the availability of existing waste <br />dump material at the Cash mine. This dump is located on the <br />Cash, Freiburg and Bella patented claims and on the unpatented <br />Cash Mine Dump claim. The portion of the mine dump that will <br />_. be reworked is all within the affected land area included in <br />this permit application. It contains material consisting of a <br />mixture of gold-silver telluride bearing quartz vein and waste <br />,~ rock which is granitic, aplitic or pegmatitic in composition. <br />-2- <br />