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6.4.4 EXHIBIT D -Mining Plan <br />This is a new application for a sand and gravel operation located in Montrose County. <br />The area to be mined is approximately 2 miles southeast of Redvale and lies on the western edge <br />of Wrights Mesa at an elevation of approximately 6,520 feet or about 500 feet above Naturita <br />Creek. <br />Historically, the azea was utilized for imgated and non-imgated pasture with some cultivation for <br />hay crops. Mining of construction materials has occurred along this outcrop above Naturita Creek <br />for decades. <br />Conventional equipment will be used for mining the material such as dozers, front-end loaders, <br />scrapers and haul trucks. Refer to Exhibit C-2 Mine Plan for the direction and extent of the <br />excavation. <br />The disturbance created by this mining operation will not require the diversion or impoundment of <br />water. Water used in the mining operation will be for occasional watering of the access roadway, <br />in which case the water will be imported and spread by truck and as imgation water for the <br />reclamation effort. Reclamation water will be supplied during the establishment of a sustainable <br />vegetation base only, requiring no ongoing imgation needs. <br />The material will be mined, sized and removed for use as various aggregate products and <br />constmction materials. Various product stockpiles maybe created on site for future needs. <br />The affected area is expected to be mined in three phases as illustrated on the Ezhibit C-1 Pre- <br />mining Map. The location of existing features, immediately adjacent structures and other pertinent <br />information are also portrayed on this map. The life of the mine, based on the present demand for <br />materials and the probability of a high water table, is estimated to be about 26 to 42 years; the <br />actual rate of mining will depend on the changing demand for materials. The best current estimate <br />for the life of the operation, at a production rate of 70,000 tons per year, is provided as follows: <br />Phase Acres Acres Disturbed Term (Years) <br />I (Road 0.7 acres) 15.8 16.5 8 - 12 <br />II (Road 0.6 acres) 15.4 16.0 6 - 8 <br />III (Road 0.0 acres) 40.0 40.0 12 - 22 <br />Phase I begins at the toe of the identified Crop Line as shown on Exhibit C-1. Work will begin in <br />the Phase I azea as soon as permitting is in place. Phase II and III will then be mined sequentially. <br />Available topsoil will be stripped from initial mining and facilities area and stored in a fill that <br />pazallels the Gurley Ditch or in the comers of the Phase I disturbance azea. This stored topsoil <br />will be used at the end of Phase I mining to cover the final pit disturbance. As a stabilization <br />measure, any topsoil which is to be stockpiled longer than about one growing season will be <br />broadcast seeded with a perennial sod-forming grass cover such as westem wheatgrass at a typical <br />rate of 20 pounds of PLS/acre. The site will then be mined to a depth of about 30t feet. <br />D-1 <br />