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• Baseline Technical <br />Report <br />ARCADIS <br />Report for Soils and <br />Biological Resources, <br />Cresson Mine Life Extension <br />Project Area <br />vegetation community type. Parent material consists of residuum from granite and <br />gneiss. The Rogert very gravelly sandy loam, cool sub-unit is found on mountainsides <br />with the natural grassland vegetation community type. Parent materials consist of <br />residuum from gneiss, granite, monzonite, and granodiorite. <br />3.1.4 Ivywild-Catamount Very Gravelly Loams <br />These soils are found on mountainsides with northerly aspects, the conifer-dominated <br />woodland vegetation community type, and some transitional aspens. The parent <br />materials are colluvium and residuum from granite that breaks into grus. <br />3.1.5 Seitz Very Gravelly Loam <br />These soils are found on mountainsides with the dense conifer-dominated woodland <br />vegetation community type. The parent materials are alluvium and colluvium from <br />is breccia and tuff. <br />3.1.6 Ess-Bushvalley Very Gravelly Loams <br />These soils are found on- mountainsides and face terraces with the natural grassland <br />vegetation community type. The parent materials are residuum and colluvium from <br />breccia and tuff. Ess soils are deeper than Bushvalley soils and are found on gentler <br />slopes. <br />3.1.7 Disturbed Soils <br />Areas that were historically mined or otherwise altered by human activities are <br />classified as disturbed soils. Surface disturbance was identified from aerial <br />photography and field observations. Differences in vegetation were also used in <br />mapping these units, as some contain vegetation that developed on disturbed ground <br />by succession from surrounding vegetated areas. Portions of these mapped units may <br />have original soil remaining, but the unit is dominated by disturbed soil. The equivalent <br />NRCS soil unit is Or, which refers to pits, mine-dumps, mine complex soils. The soil <br />map prepared from the 1997 JBR report that depicts DS units was retained on Figure <br />2-1, as it provides a more detailed depiction of the mine disturbance than the current <br />Teller-Park Soil Survey. <br />E <br />CCV Final Technical Report (3-28-08).doc 6