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• To evaluate the impact from wildlife browse, elk proof fencing was constructed on one-half <br />of each treatment. <br />Colowvo Mine Specific Field Trial <br />At the Colowyo Mine, field trial treatments to be evaluated include five plot treatments as <br />shown on Figure 4.15-1. <br />18 inches of live-haul topsoil over spoil with strip seeding. The strip seeding would <br />include a strip of native shrubs and native low-competitive forbs that would alternate <br />with a strip of native grasses, forbs, and shrubs. The proposed seed mixtures for this <br />treatment are presented in data provided in the 2005 Annual Report. <br />2. 6 inches of live haul topsoil over spoil and seeding with native shrubs and low- <br />competitive native forbs. Include some surface manipulation to create depressions <br />for enhanced soil moisture conditions. The proposed seed mixture for this treatment <br />is presented in Table 1. <br />3. 6 inches of live-haul topsoil over spoil with strip seeding. <br />4. Non-topsoiled spoil with strip seeding. <br />5. Non-topsoiled spoil seeded with relatively unpalatable native shrubs, low-competitive <br />native forbs, and low-competitive native grasses. <br />U <br />• <br />4.15-6 Revision Date: 12/12/05 <br />Revision No.: MR-77 <br />