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<br />(j) 8ie-Game Winter Ranee. Surface use (including monitoring activities), should be scheduled to <br />minimize adverse impacts on elk from December 1 to April 30. Unscheduled use may be allowed in <br />emergent}' situations with notice and coordination with the Forest Service. <br />(k) Tonoeranhv. (1) The operator/lessee shall secure adequate base]ine data to quantify the existing surface <br />resources on and adjacent to the lease area. Existing data may be used if such data is adequate for the <br />intended purposes. The study shall be adequate to locate, quantify, and demonstrate the inter-relationship <br />of the topography, geology, surface hydrology, vegetation and wildlife. Baseline data will be established so <br />that future programs of observation can be incorporated at regular intervals for comparison. <br />(2) The operator/lessee shall establish a monitoring system to quantify the progressive and final <br />effects of underground mining activities on the topographic surface, underground and surface hydrology, <br />and vegetation. The monitoring system shal] utilize techniques that will provide a continuing record of <br />change over time. The monitoring shall incorporate and be an extension of the baseline data. <br />(3) Exploration, drilling and other development activity would not be allowed on NFS lands in the <br />LBA tract during the period from December 1 to April 30. In the event of an emergency, surface use <br />(including drilling) may be allowed with authorization from the Forest Service. <br />(4) No surface occupancy or use would be allowed on the LBA tract where slopes aze greater than <br />60 percent. <br />(~ Surface occupancy or use would be controlled on lease tract slopes between 40 and 60 percent. <br />Before any such occupancy or use on lands with such slopes, a special interdisciplinary team (IDT) analysis <br />• and mitigation plan detailing constmction and mitigation techniques would be required. The IDT could <br />include specialists such as a soil scientist, hydrologist, landscape architect, reclamation, and a mining <br />engineer. ,.,, <br />8 ~ <br />(~ No surface occupancy or use would be allowed on LBA tract lands defined as wetlands~y th~ Q <br />U.S. Army Corp of Engineers regulations and guidelines. <br />;> O <br />~ -+--- <br />(7) No surface occupancy would be allowed in areas of high geologic hazard. ~ ~ r <br />(1) Subsidence. (1) Except at locations specifically approved by the FS Responsible Official, minir[g?tbat n <br />would coast subsidcncc will not be allowul uutlcr Ravcn Crock or witldu a bufi'cr zuuc dcFinrnl by ~ tT <br />projecting a 25 degree angle of draw (from vertical) from the surface expression of the creek down tithe <br />top of the coal seam to be mined. <br />(2) If subsidence activates a landslide, which adversely affects surface resources, or a documented <br />water loss, the operator/lessee shall (where applicable): restore stream channels and surface drainage or <br />protect stream flow with rarthwnrk or temporary culverts; or revegetate, as necessary, to prMert against <br />erosion; or provide other mitigation (which could include water replacement). <br />(m) Riparian Zones. No surface disturbances will be peratitted within a 1/8 mile buffer zone <br />(660 ft.) on either side of the riparian zones of Raven Gulch (or a differeht buffer zone may be established <br />in accordance with [he surface management agency guidelines). Any surface disturbance will require <br />approval of the USFS or BLM responsible official. The USFS will coordinate with the USFWS and <br />CDOW [o detemvne the type and extent of allowable variances. Asite-specific analysis will detetmine if <br />this stipulation applies. <br />C~ <br />