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they are relatively close. The current west edge of the 110 area shows a near vertical highwall which <br />must be removed for reclamation. Cuts #3, 46 and 47 will be extended slightly to the east so that <br />they will blend with the area that was previously mined for the 110 gravel operation. Some excess <br />overburden may be used to fan out to the east and ensure that the azea is suitable for its post-mining <br />use. All gold bearing gravel brought to the plant site for processing will be washed using jigs, <br />sluices and shaking tables. There are no crushers in the plant. It is a fixed metal structure on a con- <br />crete foundation of 60' x 60' footprint. The washed, waste gravel material from the plant will be <br />stockpiled using a 36" stacker from the plant. The gravel will be taken by the gravel operator for <br />sizing and sales. Any gravel material from the plant that is not sold by the gravel operator will be <br />backfilled into reclaimed areas on the site. <br />The mining and reclamation plans are very much related for this gold operation. Since the exact <br />depth and thickness of the gold bearing material is unknown throughout most of the south mining <br />azea, a continuous plan for monitoring the amount of overburden removed and gold beazing material <br />sent to the plant so that there is enough backfill material available for the post-mining topography. It <br />is assumed for this plan that the average depth of a cut is 60 feet and that the bottom gold bearing <br />portion is 5' to 15' thick. If the gold beazing portion was 30 feet thick, much more material would be <br />sent to the plant site and there may not be enough material left in certain cuts to provide for accept- <br />able post mine topography. The following items will ensure that no material handling problem will <br />arise: <br />a) Assuming that 20 feet of gold bearing material exists in a total thickness of 60 feet, the expansion <br />of the 40' depth of overburden cut @20% would allow for a replacement thickness of 48 feet. Since <br />the terrain rises appreciably to the east, it would be very easy to flatten the terrain slightly to account <br />for the deficit of overburden. It is very unlikely that the gold bearing material would exceed 20 feet <br />at any location. Past experience on the site does not indicate this will happen. <br />b) The reclamation plan in this azea calls for a series of flat areas and slopes in between to allow for <br />the rise in the terrain. If a deficit occurs, the slope to the next bench azea could simply be moved to <br />the east, making the lower flat azea wider. <br />Alma Placer 7103 10 <br />