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contained in the Yoast permit. Aline that indicates 90 percent of this standard has been placed <br />• on Figures 1 and 2 for informational purposes. At such time as bond release is formally sought, <br />revegetation will be considered successful for cover when mean cover for a bond release block is <br />at least 90% of the calculated success standard or approved technical standard. <br />WOODY PLANT DENSITY: For purposes of comparisons in this document, woody plant density <br />at the Yoast Mine is evaluated using a technical standard of 1,000 shrubs per acre. <br />Climatic Data <br />Precipitation data were collected at the nearby Seneca IIW Mine during the period 1990 through <br />2004. For years 1982 through 1989, SCC provided precipitation data from the Seneca II Mine. <br />Since the data record for Seneca II exists for only 21 years, the long term average monthly <br />precipitation data from the Western Regional Climate Center (WRCC) for the nearby town of <br />Hayden was used as an appropriate base for comparison. Information on degree-days was <br />based on temperature data from the Seneca met station 2 at the Seneca IIW Mine. <br />RESULTS <br />Numerical data are found in Tables 1 through 13 of Appendix 1. Sample data from the 2004 <br />revegetation monitoring studies are presented in Tables 1 through 9. Sampling data are <br />• summarized in Table 10. Data on species density by lifeform are tabulated for sampled areas in <br />Table 11. Data on relative cover by lifeform are compiled in Table 12. Statistical adequacy of <br />sampling is reviewed in Table 13. The list of plant species observed during these studies <br />(reclaimed and reference areas) are included in Table 14 in Appendix 2. Seed mixes used in [he <br />2002 reclamation areas are included for reference in Appendix 3. Photographs of representative <br />locations within the reclaimed area sampled in 2004, as well as photographs of the Aspen, <br />Mountain Brush, and Sagebrush reference areas are included in Appendix 4. Graphs of <br />vegetation and climate data are presented in Figures 1 through 10 of this report. <br />In the cover descriptions below, species listed as "also present" were not "hit" during point- <br />intercept sampling but were present within one meter of either side of the 50 m sample transect <br />line. Cover percentages referred to in the following results as "percent of total vegetation cover" <br />are relative, all hit vegetation values. <br />2002 Reclaimed Area <br />(Photographs 1 through 4) <br />COVER (TABLE 1) <br />59 percent of total vegetation cover in the 2002 reclaimed area in 2004 was composed of <br />• introduced annual & biennial fortis. Within this category, approximately half was attributable to <br />