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EXHIBIT "D" MINING PLAN AND TIMETABLE Location and Access The property is located approximately 12 miles east and 5 miles north of Penrose, Colorado. It is near the southern boundary but fully within the Fort Carson Military Reserva- tion. Access is from two directions: one from the south via Stone City Road, and the other from the north and east across the Military Reservation. The mayor access will be through the military Reservation via routes 1 and 14, and then across an existing dirt road to the site. This access will be the ma- ~or access only so long as the Military Reservations gives its consent. The Stone City access has a ten ton weight limit, and therefore, can only be used by lighter traffic. Access across the permitted property will generally be through the phased mining areas except in the southeast cor- • ner of the property (see map exhibit C-2). All roads used by the mining activities that cross the permitted property will be reclaimed unless otherwise requested by the surface owner. It must be noted that the Military Reservations uses this area for maneuvers, creating roads that will not be re- claimed. Current Conditions Map exhibit C shows the outline of the permitted property, topography, hydrologic factors and existing pre-law distur- bances. This property was mined for many years ending in the mid 1960's which left the mined portions of the property in an unreclaimed state. The dominant use of the property is wildlife habitat and military operations. There are no per- manent man-made structures on the property or within 200 feet of the boundary. The clay deposit lies in non-continuous multiple seams which are generally flat lying with a slight dip to the south. The mayor clay seam is between 3 and 10 feet in thickness with 1 to four minor seams less than 2 feet in thickness. The minor seams are interbedded with sandstone ranging from 0 to 4 feet in thickness. The average thickness of all seams is 8 feet. The overburden above the clay is sandstone ranging in thick- . ness from 0 to 60 feet. Current plans are to only mine the clays with an overburden thickness totalling less than 40 feet. The sandstone overburden forms a capping over the clay and, in most instances, form mesas with vertical edges (cliffs) 20 to 40 feet in height. The material below the clay seams is also sandstone.