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1 11,11' 2 9. 009 <br />K-Pit Limits <br /> <br />'s. <br />Horse Gulch <br />Fill Limits <br />0 1000 1 <br />S( <fe (n) <br />534-21 Trapper Mining 1534-21-2 Trapper - K-Prt Sequence Owg, Layout FV271 ffwchmvt (5.292009) <br />Figure 27. K-Pit Nomenclature <br />Pggc 3 <br />i <br />L-Pit Limas <br />haUICd to the K-Pit Buttress fill. Figure 29 shows the various routes for B-Block spoils. When <br />this operation has advanced sufficiently tar down the slope. the M-Sean and Q-Scam and <br />possibly the R-Seam will be mined in B-Block. This second cut in B-Block will also utilize the <br />truck fleet, hauling spoils to I forse Gulch. After the B-Block is stripped to the L-Scan the truck <br />fleet \vill begin stripping C-Block to the L-Seam. When the first cut in ('-Block is sufficiently <br />far doNvn the slope, the second cut down to the M-Scam and Q-Seam and possibly tile R-Scani <br />kvill lie mined in C-Block. When sufficient area is exposed in C'-Block a dragline will be brought <br />Ill to strip the L-Pit spoils. "These spoils will be cast into the mined-out C'-Block. The truck fleet <br />will then strip the A-Block-, these spoils will also be placed in the completed C-Block cut. All of <br />the K-Pit blocks (A. B, and C) will be mined using the truck fleet for spoil placement. <br />The upper layers of stripping in the K-Pit contain the majority of the massive sandstone in the K- <br />Pit area. These materials will provide good drainage properties and a higher than average angle <br />of internal friction to resist slope movement. The majority of this material \? ill be placed below <br />the 7,00-11 elevation as modeled in Case (factor of safety greater than 1.75). <br />Agapito Associates, Inc. <br />Extent of K-Pit Butress