2021-12-29_PERMIT FILE - M2021009 (15)

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Throughout every phase of mining, the south facing and most southerly face of the permit area adjacent to the CCP will be left unmined except those areas mined to create the internal mine access road. The ridgeline buffer will serve as the wildlife corridor and will include multiple new wildlife mitigation structures that include wildlife crossings, wildlife fencing, and exit ramps (Appendix 2). The wildlife corridor will remain for the full duration of the mine life and will begin as a 77.2-acre area as shown on Map C-2. Following Phase 5 mining, the wildlife corridor will be expanded to encompass an additional 54.3 acres resulting in a final 131.5 acres of unobstructed rangeland-seeded and forested wildlife habitat. Additionally, some of the Young Ranch, LLC-held land west of the permit area in the SE 1/4 of Section 29, within Clear Creek County, will continue to be maintained as mixed forest and rangeland thus creating a combined 160+/- acre corridor for wildlife migration along CCP between mile markers 0.5 and 2.5. It should be noted that wildlife corridor outside of the proposed permit boundary is not intended to be mined or included in the permit as affected lands. Wildlife mitigation structures will also be installed along the CCP north of the site entrance and along CCP mile markers 3-6. The wildlife corridor, combined with wildlife maintained Young Ranch, LLC land and additional structures north and west of the active mining area, will represent extensive wildlife mitigation structures and wildlife habitat preservation along the CCP. The final wildlife corridor will rise to>8100-foot elevation north of and above the Parkway at its highest point and will be 7450 feet in elevation north of the parkway at its lowest point and is shown on Maps C-2 and F-1. Wildlife habitat and structures are further detailed in Exhibit H: Wildlife Information and Appendix 2. The resultant wildlife corridor's 131.5 acres contain>120 million tons of unmined metamorphic bedrock. Safeguarding this landform in its undisturbed state, both maintains the existing wildlife migration corridor/habitat along this portion of the CCP and allows the undisturbed portion of this natural landform to function as a shield for the mine area as seen from the I-70 corridor. The wildlife corridor, therefore, also helps to preserve the overall mountain aesthetic as viewed from the I-70 corridor. The geologic units to be mined are Precambrian metamorphic bedrock, Cretaceous intrusive rocks (Kqm), and a Neogene boulder gravel (Tbg). The gravel overlies the bedrock units and is thickest along the center of the site near the CCP in the eastern extents of the quarry and thins to 0 feet along the western extent of the site. The underlying Precambrian interbedded felspar-rich Young Ranch Resource December 2021 D-2 Lewicki&Associates