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gallery from the mill tunnel.All of these items are shown on the attached Map 1.The engineering plans for the <br /> mill were designed by CH2MHill in Denver, Colorado. Plans were based on samples of the ore and production <br /> targets for the mine and mill. Drilling and blasting of the tunnels was started in March of 2013. Initial completion <br /> of the mill concrete flooring, crushers, screens, ball mill,flotation cells,water handling systems,filter presses, <br /> control room, reagent storage and electrical room occurred in April of 2014. <br /> The general plan view for the mill operation is enclosed as Map 1. It is divided into three views, 1-the general <br /> view of all areas, 2-details of the mill tunnel and 3-details of the filter building and thickener.The ore is <br /> transported by mine cars to the slusher tunnel withCoarse Ore Bin, which has the rail siding above the crushing <br /> gallery. Here the ore cars are side dumped to a long, narrow holding area,where a slusher gathers the ore and <br /> delivers it to a spiral chute,which leads to a pan feeder, which feeds a conveyor leading to the main crushing <br /> gallery,where the ore enters a jaw crusher,followed by a cone crusher. Most of the material leaving the Jaw <br /> crusher is-3/8".A conveyor from this Jaw crusher leads to a 3/8" screen where the oversize goes back to the <br /> cone crusher for a second run.The undersize continues up the Fine Ore Bin incline tunnel where it feeds the 4 <br /> story fine ore storage bin of approximately 300 tons.This material is then fed to the main concentrator gallery <br /> or mill tunnel,where the-3/8" ore enters the ball mill for reduction to approximately 100 mesh size and lower. <br /> This reduction takes place in a wet enclosed ball mill with many steel balls which grind the ore.All remaining <br /> processes are fully wet from this point forward.The wet material from the ball mill is then moved to a <br /> hydrocyclone where free gold is concentrated using its much higher density.The fine slurry from the <br /> hydrocyclone is then moved to a Knelson Centrifugal Bowl where the free gold is further concentrated for sale. <br /> The remaining material is then delivered to two conditioning tanks. It is also at this point that chemicals are <br /> introduced into the processing stream to raise the pH and prepare for the concentrate separation in the <br /> flotation cells.The series of rougher and cleaner flotation cells are then used to selectively remove zinc, lead, <br /> copper and silver sulfides. <br /> Sulfide concentrate is collected at the top of the flotation cells using traditional frothers and chemicals which <br /> promote the flotation of the sulfides.The sulfide concentrates are collected at the top of the flotation cells and <br /> are then passed into 2 filtrate tanks for final dewatering.The sulfide concentrates represent approximately 3%- <br /> 8%of the total starting ore material.The concentrates are then placed in super sacks for transport off site for <br /> sale. <br /> The tailings from the flotation cells are fine slurry of-100 mesh size,which are gathered in an 18,000 gallon tank <br /> in the mill tunnel.The slurry at this point contains approximately 30%solids. From there,they are pumped to <br /> the 26 feet diameter thickener, which is located outside the filter building.The thickener was not part of the <br /> Revenue Mill Certification Page 4 of 20 <br />