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EXHIBIT C <br />Pre-Mining and Mining Plan Maps <br />Immediately Adjacent Land Owners of Record <br />Property ownership information for immediately adjacent surface landowners of record is <br />contained in the map at the end of this exhibit. <br />Surface Features <br />The primary surface water feature within 200 feet of the proposed mine area is Idaho <br />Creek. <br />Most of the expansion area is located within the 100-year floodplain area for Boulder and <br />St. Vrain Creeks, see enclosed FEMA map. <br />Topography <br />Topography maybe characterized as flat to very gently sloping over the areas proposed for <br />mining. Current site topography is shown on the Pre-mining Plan Map. Surface slopes are <br />generally to the northeast. <br />Area of Affected Lands <br />The proposed permit area covers 56.5 acres. The total area expected to be disturbed <br />including mine areas, temporary overburden and topsoil stockpiles, and access roads is <br />approximately 52 acres. <br />Vegetation <br />Vegetation consists of irrigated hay crops, primarily smooth brome. Wetland vegetation <br />occurs along Idaho Creek, which will not be mined. <br />Wetlands Delineation <br />Only non-jurisdictional wetlands, totaling 1.19 acres, will be impacted by the Duckworth <br />project. Jurisdictional wetlands totaling 2.06 acres are present along Idaho Creek but will <br />not be impacted by mining. The riparian wetlands in the site consist of wet meadows <br />dominated by a variety of perennial grasses and grass-like species, such as reed canary <br />grass, chairmaker's rush, common spikerush, foxtail barley, and prairie cordgrass. <br />Permanent or Man-Made Structures <br />All permanent or man-made structures are shown on the attached map, and a list of the <br />structure owners can be found in Exhibit S. <br />Soils <br />Soils consist of aquolls and aquepts covering the majority of the site with lesser amounts of <br />Bankard sandy loam. These soils are described in Soils Survey of Weld County, Southern <br />Part [United States Department of Agriculture, Soil Conservation Service (SCS), 1980]. <br />Pertinent excerpts from the soil survey are provided in Exhibit I of this document. <br />Duckworth Pi[ <br />DMG 112 Permit <br />Page 6 of 49 <br />