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Permit M-1977-493—Climax Mine Technical Revision 37 (TR-37) <br /> E-1 Summary of Existing Reclamation Plans <br /> The existing Climax Mine Reclamation Permit includes plans for reclaiming areas affected by mineral extraction <br /> and production at the site. These areas include the open pit, ore processing areas, overburden storage facilities <br /> (OSFs), tailings storage facilities (TSFs), and other structures and facilities within the affected area. Reclamation <br /> practices that have been previously approved by the Colorado Division of Reclamation, Mining, and Safety <br /> (DRMS) for use at the Climax Mine include the following: <br /> ■ Regrade to enhance long-term stability, promote reclamation success, and reduce erosion potential. <br /> ■ Install and maintain surface water drainage controls to retain or route water from the affected area in a non- <br /> erosive manner. <br /> ■ Strip available topsoil prior to disturbance, then spread or discretely stockpile topsoil on site. <br /> ■ Distribute and spread topsoil onto areas prepared for final reclamation at depths that most benefit the <br /> reclamation process. <br /> ■ Place temporary rock covers on the TSFs as needed to reduce potential water and wind erosion. <br /> ■ Incorporate amendments into final cover materials as needed to manage soil quality. <br /> ■ Revegetate with ecologically appropriate species mixtures, accounting for elevation and other conditions that <br /> vary within the affected area. <br /> Some of the reclamation strategies in the approved permit will be unaffected by this update. However, these <br /> strategies have been re-evaluated in this revision with the goal of minimizing post-reclamation maintenance of the <br /> site and implementing lessons learned from previous reclamation activities conducted at the site. This reclamation <br /> plan supersedes prior Climax reclamation plan submittals with respect to the sections included herein. All other <br /> aspects of the previously approved Climax reclamation plans remain unchanged. <br /> E-2 Reclamation Goals <br /> The reclamation goals of the Climax Mine have not changed from previous approvals. The overall reclamation <br /> goal is to achieve post-mining land use on all reclaimed land. In areas where revegetation is required to meet <br /> post-mining land use, the long-term reclamation goal is still to stabilize disturbed areas and create a long-term <br /> self-sustaining vegetative cover that promotes ecological succession and stability. Stabilization and revegetation <br /> objectives for the Climax Mine have been, and will continue to be, pursued with the best practical technology <br /> developed for high-altitude reclamation. <br /> E-2.1 Target and Surrounding Land Use <br /> Post-mining land use for the Climax Mine site remains unchanged by this update. Primary reclamation will be to <br /> rangeland (RL), defined as grazing land and open forest with a mosaic of vegetation communities and wildlife <br /> habitats. Several areas are also designated for water development (WR) and industrial/commercial (IC) and there <br /> is potential for recreational use (RC) in some areas as well. These land use designations are consistent with <br /> previous versions and permit amendments and are also consistent with master plan objectives of local counties. <br /> The land adjacent to the Climax property is primarily National Forest Land managed for various land uses by the <br /> US Forest Service (USFS), similar to those designated by Climax. The USFS lands are used primarily for <br /> recreation with limited forestry and grazing activities. Several small, patented mining claims also border Climax <br /> property but are not currently being mined. <br /> E-3 Reclamation Success <br /> Climax has devoted significant time and expense to researching, testing, and developing practical and workable <br /> solutions to reclamation challenges in high-altitude environments. Since the 1960s, Climax has been at the <br /> forefront in developing reclamation and revegetation techniques that are in use at many other high-altitude mines <br /> as well as ski areas, highway projects, and other high-altitude developments. <br /> Learning from past reclamation projects and years of experience, Climax has developed strategies for high- <br /> altitude revegetation that have proven successful. The strategies outlined in this reclamation plan reflect these <br /> Exhibit E E-1 March 2024 <br />