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• Any occurrence of, or critical habitat of, an animal or plant species that is <br /> threatened, endangered or is proposed for listing as threatened or endangered <br /> by CPW or the U. S. Fish and Wildlife Service. <br /> • Any raptor or nest of a raptor that was not previously reported by PSCM. <br /> Big game protection measures require PSCM to: <br /> • Post a vehicle speed limit of 25 miles per hour on access roads and haul roads, <br /> • Advise employees of the importance and need for adhering to the speed limit <br /> for protecting big game and for safety, and <br /> • Schedule employee shift changes as much as possible so that big game/vehicle <br /> collisions are reduced during the four hour time period after sunset. <br /> A protection measure for Columbian sharp-tailed grouse and greater sage-grouse <br /> requires PSCM to minimize impacts to these grouse that are known to exist or are <br /> discovered within one mile of the disturbance area by locating access roads for minimal <br /> impacts to known leks, if possible. <br /> Measures for protecting greater sage-grouse during the time of their peak breeding <br /> activity, March 15 through June 15, require PSCM to: <br /> • Maintain employee shift changes, if necessary, so that peak access road traffic <br /> will not coincide with the period of peak breading activity. <br /> • Prevent employee access from one hour before sunrise to one hour after <br /> sunrise to roads in the PSCM permit area that pass by the Seneca 1, Seneca 2, <br /> and Seneca 3 leks (which are located outside the permit area)unless the <br /> employee is a biologist or support person who is monitoring the grouse. <br /> • Minimize new disturbance within 1.25 miles of a known lek. <br /> • Coordinate, as necessary, with CPW on minimizing impacts to the grouse <br /> from mining-related activities. <br /> Measures for protecting nesting raptors require PSCM to: <br /> • If possible, locate surface disturbances at least one-half mile from all known <br /> nest sites and in locations that do not destroy nesting habitat. <br /> • Limit employee access to areas designated as raptor nesting areas or suitable <br /> nesting habitat and limit activity within one-half mile of any active golden <br /> eagle nest from March 15 through May 31. <br /> • Monitor any active nests that are within one-half mile of surface disturbance <br /> activities and determine mitigation measures for the nests on a case by case <br /> basis. <br /> • Monitor the known golden eagle nests in Section 3, T5N, R87W for activity. <br /> • If the nests in Section 3 are found to be active, minimize mining and related <br /> activity within one-half mile of the nests between March 1 and May 31. <br /> 21 <br />