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EXHIBIT D <br />Mining Plan <br />Mining Limits <br />GP Ranches, LLC proposes to mine the northeast % and the northeast % of the northwest'/ of <br />Section 33, and the south % of the southeast '/ of Section 28, Township 22 South, Range 46 <br />West of the Sixth Prime Meridian, in Prowers County, Colorado. The site lies approximately '/2 <br />mile east of the City of Lamar, and approximately '/ mile north of State Highway 50. Prowers <br />County Road HH.5 is immediately adjacent to the south side of the permit area. Access to the <br />site will be located at the southwest corner of the permit boundary off of Prowers County Road <br />HH.5. The dominant land use surrounding the property is agricultural. <br />An aggregate processing plant will be located within the mining area as shown on the Mining <br />Plan Map. The area will contain stockpiles and portable equipment as necessary to support the <br />plant operations. <br />The permit boundary will encompass approximately 233.4 acres with approximately 189.8 acres <br />being mined. The remaining area will consist of setbacks, road and utility right-of-ways, <br />equipment storage, and plant site access. <br />Various setbacks from adjacent roads and man made structures will be maintained as mining <br />occurs. See Exhibit C, Mining Plan Map, and the Slope Stability Report for the mining limit <br />configuration and information on setbacks and their locations. <br />Products <br />Sand and gravel will be the primary product produced from the West Farm Pit site. The principal <br />intended use for the sand and gravel is for road base and construction aggregates. <br />Subsurface drilling and testing has verified that the West Farm Pit property contains a significant <br />commercial deposit of sand and gravel. The depth of the overburden ranges from 7 to 22 feet. <br />The thickness of the aggregate material ranges from 18 to 60 feet. The overall depth to bedrock <br />ranges from 37 to 67 feet. See Exhibit I, Soils Information, for detailed data on the nature, <br />depth, and thickness of the soil strata present in the property area. <br />Mining Methods <br />The deposit will be dry mined, with dewatering trenches being excavated around the perimeter <br />of each mining phase prior to mining operations commencing. The depth of the ditches will vary <br />as the mining progresses deeper into the alluvium in order to maintain the groundwater level <br />below the active mining bottom surface, and therefore minimize the exposed groundwater <br />surface area. The dewatering ditches will flow to a collection pond, from which the water will be <br />pumped into either the Farm's irrigation lateral, which traverses the site, or into Willow Creek, <br />and discharged into the Arkansas River. <br />The equipment and facilities may include, but are not limited to the following: <br />Processing Equipment <br />Screens, crusher, conveyors, stackers, and other miscellaneous processing equipment. <br />?• JaT Consulting, Inc. GP Ranches, LLC. <br />West Farm Pit <br />DRMS 112 Permit Application