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<br />and were probably continuous for the next several years. <br />After that mining activities have occurred on a periodic and <br />_ intermittent basis, The most recent investigations occurred <br />in 1982 and consisted of taking some grab samples of the waste <br />rock dumps, prospect pits and the cut along the roadway. <br />Surface development at the Incas consisted of numerous adits, <br />' tunnels, and prospects. The most e:<tensive development <br />occurred underground from the Upper and Lower Combination. and <br />Avery Tunnels. The aggregate length of the workings is <br />' appro>:imately 2,UO~i feet with three stones. <br />Most of the historic mining record at the Incas is documented <br />by appro>;imately 2G waste rocl: dumps, a number of prospect <br />pits, several adits and associated tunnels, and an ore load <br />out facility. The main road crosses through the property; <br />however, there are several side roads to the main adits where <br />' most of the historic operations were carried out. An old <br />trail is also visible. traversing the properties as well as <br />the landscape beyond the property boundary. <br />In the original application, the proposed mining voeration <br />included rewgr4:ina the old dumps and reopening one or more of <br />the old adits and tunnels. However, soon after the initial <br />' activities began and more assay data. became available. it was <br />evident that the entire face of the historic work:inas <br />contained economic quantities of mineralisation. As a result <br />' most of the waste rock. caved materials, and inplace alluvium <br />were hauled from the mine site. The resultant activity more <br />closely resembled an open piticut surface mine voeration <br />rather than what was originally proposed. Other associated <br />mining activities include underground exploration and some <br />improvements to the local access road zn addition to grading. <br /> The old <br />ore which waste roc4: dumps contain considerable quantities of <br />was originally wasted because gf its relatively low <br /> grade. Modern equipment, improved separation techniques, and <br /> the mar{::e t price gf ggld have made this ore commercially <br />t important at this time. The dump materials are being pic~;ed <br /> up using front loaders and/ or bacl:hoes and deposited on a <br /> portable grizzly screening plant. The ore is sorted to minus <br /> sir, inche s. The larger material is bac4;filled into the <br />' e:<hausted areas of the pit. <br /> The minus six inch fraction is loaded on 4 x 4 <br />transported to the Idaho Mill Site. At the stub truc~:s and <br />Idahg Mill (an <br /> independent commercial venture) the ore is crushed to minus <br /> two inches. The operators of the Idaho Mill are independent <br />' of the Incas Mine operation and a fee is paid by Applicant to <br /> have his ore crushed. Over the highway trucks are currently <br /> hauling the ore to a commercial mill near La Garita. CO. for <br />' cyanide heap leaching. It was anticipated that 2i~i~ tons of <br /> <br />~~J <br />Y° t~~ I, <br />ror <br />aL <br />~, ~ s <br />U,~.^fi yrL <br />wn <br />-y ~, <br />v`'r <br />i~ <br />