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• operations. <br />Removal of a7.1 livestock from the viciui.ty of the ongoing <br />mining operation wou]d be necessary Co avoid accidental loss <br />due to equipment-anir..al collisions or animals falling off the <br />higherall. Fencing of the revegecated areas to exclude li.va- <br />stock grazing for a period of two browing seasons would be <br />needed to allow new vegetation to becorie estab'_ished. Th'_s <br />would mean a short-term loss of food for long-tem establish- <br />ment of a self-sustair.ino floral cor.L~unit}•. <br />If presentl}• unknu:-n subsurface archaeological sites occ•:r on <br />the mine property they could be subject to damage b}• direct <br />surface disturbance, and could also be subject to va^dalis-~ <br />• and pothunting. The significance of this impact is unquan='_- <br />fiable as it would depend upon the nature of the unknown <br />resource. Other impacts would also result from required as <br />well as unnecessary e_YCavation of significant archaeological <br />sites. <br />Given the foregoing mitigating measures, the net risidual of <br />adverse aesthetic impacts should be significantly reduced. <br />However, there would be an increasing alteration of the <br />characteristic landscape accompanying th= proposed action. <br />For all practical purposes, several visual]y incongruous <br />elements or minus deviations would remain unmiti~,ated. The <br />visually unconforming effect of roads and rights-oE-way <br />r <br />154 <br />