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Rifle Gravel Pit #1 January 2020 <br /> 4.0 Exhibit C -- Pre-Mining and Mining Plan Map(s) of Affected Lands <br /> Rule 6.4.3 outlines the requirements for Exhibit C as described below and depicted in Figure <br /> 3 through Figure 5. These figures show the total area to be involved in the operation, <br /> including the area to be mined, area of affected lands, adjoining surface owners and roads <br /> (Figure 3); name and location of all creeks (Figure 4), and the type of present vegetation <br /> covering the affected lands (Figures 5 through 8). <br /> There are no significant, valuable, and permanent man-made structures contained on the <br /> area of affected land and within two hundred (200) feet of the affected land. <br /> Exhibit A (Figure 1) depicts the existing topography of the area with contour lines of enough <br /> detail to portray the direction and rate of slope of the affected area. Figure 1 also shows that <br /> there are no buildings nor power and communication lines on the area of the affected land <br /> and within two hundred (200) feet of all boundaries of such area. There is an oil and gas pad <br /> adjacent to the southwest of the property within the Robinson Ranch. <br /> Exhibit C (Figure 4) contains the water and water resources information and Exhibit I (Figure <br /> 16) contains the soils information. <br /> 4.1 Adjoining Surface Land Owners Map Information <br /> There are four adjoining surface landowners (as depicted in Figure 3). <br /> • North —Colorado River Ranch, LLC <br /> • West— Rex Robinson Ranch, LLC <br /> • South — Colorado Department of Transportation (CDOT) <br /> • East— Shidelerosa LLP <br /> This information was obtained from the Garfield County Colorado Land Explorer (Garfield <br /> County, 2019). <br /> 4.2 Topography <br /> The existing surface topography is extremely flat and composed of several feet of fine- <br /> textured alluvial sediment overlying a highly permeable alluvial aquifer of coarse gravel. The <br /> coarse gravel material lies on bedrock, adjacent to the Colorado River (based upon <br /> available boring data). The only topography of note is the artificially excavated tailwater <br /> return channel of the Last Chance Ditch, with generally bisects the property from east to <br /> west. Figures 1 and 4 depict these features. <br /> 4.3 Vegetation <br /> Vegetation in the project area is dominated by partially-irrigated pasture lands, which are <br /> subjected to an inconsistent and uneven application of irrigation water via flood irrigation <br /> and subsurface seepage. The mixture of mesic and hydric soil conditions supports a mosaic <br /> of upland pasture areas and wet emergent meadows, with the water table so elevated in <br /> some portions that the wet meadows contain areas of open surface water. Some small <br /> areas contain sparse riparian woodland, dominated by non-native Russian olive (Elaeagnus <br /> angustifolia) with a sparse overstory of cottonwood (Populus deltoides). The wetlands that <br /> are on site were created by irrigation activities and will likely disappear in a relatively short <br /> 7 <br />