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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 <br />is 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 identifes the taxonomy of <br />each named soil component is Attachment 2.04.9-2. A Taxonomic unit description of each <br />named soil component is provided as Attachment 2.04.9-3 at the end of this section. Soil profile <br />data sheets are found in attachment 2.04.9-10. <br />Soil Survey - 7998 <br />The soil test location descriptions are typical and consistent for soil in the area. The Order I <br />survey is a refinement of the "not yet published" Order III soil survey that the NRCS has <br />. conducted in the area. Detailed map unit descriptions can be found in Appendix 2.04.9-9, <br />Soil Map Unit Descriptions. <br />Map unit 98A occurs on alluvial terraces formed along Tuttle Creek. Profiles were <br />described to 72 inches. Some areas may have soil deeper than 72 inches and yield a <br />slightly greater amount of salvage material. <br />Map unit 98B occurs on steep mesa side slopes. Hardness of bedrock varies depending on <br />the underlying strata. Coarse fragments range from channers to cobbles and are residual <br />and colluvial in nature. Valleycity soil has the same physical and chemical properties as <br />those soils similarly named in the survey area. Valleycity is outside the range of <br />characteristics compared to the survey area, in that it occurs in an area of 5 to 8 inches <br />mean annual precipitation. <br />Map unit 98C occurs on mesa summits, ridges and crests. Hardness of bedrock varies <br />. (Revised 2/00) 2.04.9-12 <br />