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Soil Survey Maps <br />The distribution of each soil map unit on the New Horizon Mine study area for 1988, 1996 and 1998 is <br />provided as a composite on Map 2.04.9-1. <br />Typifying soil pedons (soil sample locations), as well as soil profile description locations are also <br />denoted on Map 2.04.9-1. A complete soil identification legend, which identifies all mapping unit <br />symbols, is as Attachment 2.04.9-1. A soil classification legend that identifies the taxonomy of each <br />named soil component is Attachment 2.04.9-2. A Taxonomic unit description of each named soil <br />component is provided as Attachment 2.04.9-3 at the end of this section. Soil profile data sheets are <br />found in attachment 2.04.9-111 <br />Soil Survey -1998 <br />The soil test location descriptions are typical and consistent far soil in the area. The Order i survey is <br />a refinement of the "not yet published" Order III soil survey that the NRCS has conducted in the area. <br />Detailed map unft descriptions can be found in Appendix 2.04,9-9, Soil Map Unit Descriptions. <br />• Map unit 98A occurs on alluvial terraces formed along Tuttle Creek. Profiles were described to 72 <br />inches. Some areas may have soil deeper than 72 inches and yield a slightly greaser amount of <br />salvage material. <br />Map unit 986 occurs on steep mesa side slopes. Hardness of bedrock varies depending on the <br />underlying strata. Coarse fragments range from channers to cobbles and are residual and collwial in <br />nature. Valleycity soil has the same physical and chemical properties as those soils similarly named <br />in the survey area. Valleycity is outside the range of characteristics compared to the survey area, in <br />that it occurs in an area of 5 to 8 inches mean annual precipitation. <br />Map unit 98C occurs on mesa summits, ridges and crests. Hardness of bedrock varies depending on <br />the underlying strata. <br />Map unit 98D has thinner Quaternary eolian deposits than map unit 98E wfth a mean depth to <br />bedrock of 30 inches. These deposits have developed Iambic horizons, weak argillic horizons and <br />• (Revised 2/00) 2.04.9-11 <br />