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MOUNTAIN MEADOW
<br />Mountain Meadow describes the alluvial valley floor which is crossed by the
<br />haul road which connects County Road 120 with the King I Mine surface facilities
<br />area. This haul road will not be reclaimed upon completion of mining.
<br />The valley bottom along Hay Gulch is composed of Mountain Meadow grasses.
<br />These valley bottoms are used primarily for cattle pasture with some of the larger
<br />areas being cut for hay.
<br />The Mountain Meadow vegetation type tends to occur on soils of Mapping Unit
<br />13-(Big Blue clay loam, 0 to 6 percent slopes). The soils of this mapping unit are
<br />deep, poorly drained, and fine textured. The soil's surface layers are dark grayish
<br />brown clay loam to silty clay to approximately 13 inches in depth. The subsoil is
<br />gray silty clay about 90 inches thick. These soils occur on nearly level to gently
<br />sloping low terraces and valley bottoms.
<br />The Soil Conservation Service in the Mountain Meadow range site description
<br />indicates this site has an approximate ground cover of 70 percent. The percentage
<br />composition by weight of the principal native species may total as much as:
<br /> Tufted hair rass 50
<br /> Nebraska sed e 25
<br /> Slender whea ass 20
<br /> Blue'oint reed ass 5
<br />The total annual production in pounds per acre (air-dry) is:
<br />Favorable year's 4200 pounds per acre (air-dry)
<br />Unfavorable year's 2500 pounds per acre (air-dry)
<br />Median year 3150 pounds per acre (air-dry)
<br />(See Appendix 6(2) for Soil Conservation Service supporting data)
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<br />National King Coal, LLC King I Mine
<br />Section 2.04.10
<br />Page 2 February, 2007
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