2021-08-31_REVISION - M2017007 - Laserfiche WebLink

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MINING PLAN EXHIBIT D(CONT) perimeter setbacks or on the mine floor, i .e. in places where it will not be disturbed until needed. The approximate location of the overburden and topsoil piles are shown on the MINING PLAN MAP. Mining will begin on a section of the slopes created at the end of the last mining cycle until a near vertical face is open. This face will be worked to the north and south until it extends across the property and at that time mining will progress to the west . As mining progresses thru the site the processing plant will be set near the open face to reduce the haul distance from the mine face. This pit will be operated year-around by Colorado Crushing, Inc. , weather permitting. There may be periods when the demands for material are slow and no mining will take place at which time the mine will become an Intermediate Operation. Stockpiles of material will be maintained on the site and as the need arises, it will be hauled to our project sites or sold to the public. This will be a single stage operation, but the amount of bonded disturbance will be limited to 35 .0 acres or less at any- one-time. This will allow us to use approximately 15.0 acres as a processing plant/stockpile area and approximately 5 acres for the active mining area and 15 acres of partially reclaimed area or area being prepared for mining. As mining progresses around the property the bank slopes will be mined or shaped to the required grades where they are in their final location. This will reduce the amount of work that has to be done to reclaim the site. Reclamation will begin once we have enough room for the stockpiled material and the newly mined section, to be reclaimed so it will not have to be disturbed again. Review of MAP EXHIBIT C-1 shows how we expect the site to look when mining is approximately 38% done. Note, the floor of the excavation is flat and the exterior slopes into the mined area are graded 3 : 1 where reclaimed, 2 : 1 when temporary grading is done and near vertical where mining is taking place. There is adequate overburden and reject materials that can be used to backfill the exterior slopes if needed, even if Option 1 reclama- tion is followed. We have developed two Options for the reclamation plans for this mine so in the future we will only need to file a Technical Revision to implement the changes for Option 2 if needed. Mining equipment may include but is not limited to, front- end loaders, scrapers, bulldozers, dump trucks and a water truck. 10(Revised 8/12/21)