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<br />between approximately one and two feet of salvageable topsoil. Due to the <br />anticipated area which will require reclamation, it is anticipated that between six <br />and twelve inches of topsoil, which will be salvaged from the last two or three <br />years' mining blocks will be more than adequate to successfully reclaim this site. <br />The location of the proposed topsoil stockpile needed for final reclamation of this <br />site is shown on Map 3, Tellier Gravel Pit -Mine Plan Map. <br />3. Overburden Thickness. The overburden on this site consists of topsoil and clay <br />materials which overlaythe gravel deposit. In all areas commercial gravel deposits <br />occur immediately below the topsoil. The thickness of topsoil ranges from 12 to <br />18 inches and the thickness of the overburden ranges_from_3.5_to 1 5_feet. No <br />overburden or waste rock stockpiles will be generated during the mining <br />operations as all of these materials will be used to backfill the previous mine pits. <br />Overburden generated from the initial mine pits will be used to construct the mine <br />access road. Backfilling in Phase I Mine Block will commence along the northern <br />portion of the property and proceed in western and southerly directions. Priority <br />will be given towards immediate backfilling of the areas next to the natural gas <br />pipe line as recommended by the geotechnical consultant. <br />4. Thickness of Gravel to be Mined. Fifteen exploration pits dug to date reveal that <br />the thickness of the gravel deposit is governed primarily bythe depth of the shale <br />layer which forms the bottom of the old river channel in this area. Based upon <br />these test pits, the depth of gravel ranges from approximately 13 feet to upwards <br />of 48 feet, and averages 19.9 feet in thickness. The thinnest gravel deposits <br />occupy the eastern portion of the mine plan area, while the thickest deposits <br />occur in the western and southern portions. <br />5. Components of the Minino Operation. The existing ranch road is wide enough <br />to serve the anticipated truck traffic which will be generated by this proposed <br />gravel pit in the vicinity of the turn off from Routt County Road # 33A, however, <br />a suitable mine access road will have to be made to access the proposed mine pit <br />from a point located approximately 165 feet to the south. Due to the proximity <br />of this operation to the existing office_ and maintenance buildings, it is not <br />anticipated that any additional permanent buildings will need to be constructed <br />at this site. The only possible buildings which might be needed at this site would <br />consist of a portable outhouse and possible temporary office trailer. A crusher and <br />scales will be set up on the east side if the property, to the south of the natural <br />gas pipe line, adjacent to the proposed mine access road, in the northeast portion <br />of this site. The proposed location of the outhouse, office trailer, crusher and <br />scales is shown on Map 3, Tellier Gravel Pit -Mine Plan Map. <br />6. Dimensions of Disturbances. The location of each proposed mine block as well <br />as the topsoil stockpile is shown on Map 3, Tellier Gravel Pit -Mine Plan Map. The <br />approximate dimensions of the year mining blocks are approximately 100 feet <br />6 <br />