2023-06-20_PERMIT FILE - M2023021

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MINING PLAN EXHIBIT C 6.3.3 - This is an open pit mine located approximately 13 .75 miles west of Campo, Colorado on a private road. From the intersec- tion of US HWY 287 and 4th street in Campo Colorado go west on 4th St (CR J) 13 miles to CR 15 the south 2 . 0 miles to CR G. Follow CR G west 0 . 7 miles to a private road (37°04134 .2646, 102°49136 . 7195) bearing northwest . Follow the dirt road north 375 feet to the mine entrance (37°04 ' 37 . 79N, 102°49 ' 38 . 08W) . Access to the mine will be via this existing road that is owned by the landowners . This road provides access to the property north of the road and a gravel mine that is now closed. It is currently 18 feet wide and the location is shown on the map exhibits supplied with this application. The road will be graded and maintained throughout the life of the mine to provide access to the surrounding lands owned by the applicant . Periodic grading will be necessary to keep the road in its present condition and to make it passable. It will remain after mining is complete as an existing road that provides access to the property. Being an existing road it is not required to be included in the permit. The anticipated life of this mine will be between 20 and 30 years depending on the amount of material in the mine, and the market demand. The site is currently used as rangeland and consists of a sandy gravely hillside that slopes from north to south. The usable material on this site, is 40+ feet deep. The dirt covering the gravel averages 0 to 5 inches deep over the material to be mined. It can not be considered topsoil in the usual sense but is a thin cover of rocky sand that grass grows sparsely on. The material will be used to supply borrow, pit-run fill material, and processed aggregates. The land will remain rangeland as mining progresses and once reclamation is complete the area will be reseeded so it will have the same use . Initially, a slight grade sloping to the working face will be created so surface water runoff can be contained on the site until reclamation is complete. All stormwater on the site will be directed towards the mining face where it can soak in or be treated before released. Stormwater will not be retained on the site for more then 72 hours . Along the exterior of the permit area a 10 foot mining limit setback line will be established by grading a ditch parallel to the permit line. This line will become the top of the finished slope . Prior to mining a section of the surface, it will be stripped of 6 inches of dirt (growth medium) and placed around the mine setback or on the mine floor for used in reclamation. As mining progresses the W.F. RATLIFF-East Sand Canyon Mine 23 June 1, 2023