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Table 2 Hamilton Mine - Vegetation Cover - 2010 & 2011 <br />Relative Cover Summary <br />Percent Ground Cover lased on Point - Intercept Sampling <br />Area -> <br />Sample Year -> <br />Reclaimed Areas <br />Reference Areas <br />Mine Area No. 1 <br />Mine Area No. 3 <br />Sagebrush A <br />Sagebrush B <br />Grassland <br />2010 I 2011 _ <br />2010 I 2011 <br />2010 I 2011 <br />2010 I 2011 <br />2010 I 2011 <br />Grasses and Grass -likes <br />N P Agropyron dasystachyum Thickspke Wheatgrass <br />N P Agropyronsmthi Western Wheatgrass <br />N WP Aristida purpurea Purple Threeawn <br />0.90 <br />0.22 <br />- <br />0.50 <br />- <br />- <br />- <br />0.74 <br />- <br />- <br />1.12 <br />0.96 <br />- <br />13.38 <br />- <br />12.30 <br />- <br />- <br />- <br />- <br />- <br />- <br />1.05 <br />N WP Bouteloua graalis Blue Grama <br />I A Bromus tectorum Cheatgrass <br />I P Elymusjunceuss Russian Wlldrye <br />11.31 <br />6.61 <br />1.79 <br />21.81 <br />5.93 <br />1.91 <br />15.80 <br />4.32 <br />33.82 <br />5.71 <br />- <br />2.05 <br />0.59 <br />8.04 <br />- <br />- <br />0.33 <br />3.68 <br />6.80 <br />0.65 <br />- <br />16.34 <br />3.05 <br />15.71 <br />3.14 <br />- <br />N WP Maria fames/7 James' Galleta <br />N P Oryzopsishymenoiies Indian Ricegrass <br />N P Silan,on hystrix Bottlebrush Squirreltail <br />2.13 <br />14.33 <br />5.38 <br />0.90 <br />9.75 <br />0.80 <br />3.33 <br />12.72 <br />6.91 <br />3.25 <br />8.40 <br />4.14 <br />13.20 <br />2.64 <br />14.37 <br />1.29 <br />4.82 <br />2.57 <br />4.35 <br />2.01 <br />21.74 <br />2.59 <br />3.24 <br />14.56 <br />2.22 <br />0.55 <br />10.47 <br />0.52 <br />0.26 <br />N WP Sporoboluscryptandrus Sand Dropseed <br />N P Stipa comata Needle and Thread <br />5.26 <br />23.74 <br />22.71 <br />8.94 <br />11.36 <br />2.02 <br />8.51 <br />5.87 <br />1.61 <br />4.18 <br />2.68 <br />4.21 <br />0.32 <br />68.98 <br />2.09 <br />56.02 <br />Forbs <br />NW P Acrophion repens Russian Knapweed <br />I P Ashaga /us ccer Chickpea Milkvetch <br />N A Descuraima pinata Western Tansymustard <br />1.46 <br />- <br />- <br />0.10 <br />0.10 <br />0.30 <br />0.12 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />N P Erigeron concinnus Shaggy Fleabane <br />N P Eriogonum sp. Buckwheat <br />I A Erodium ckutariun Redstem Storks ill <br />- <br />- <br />0.34 <br />0.30 <br />- <br />- <br />0.49 <br />0.37 <br />- <br />- <br />- <br />1.76 <br />2.25 <br />- <br />- <br />1.67 <br />1.94 <br />- <br />- <br />0.55 <br />0.83 <br />- <br />0.26 <br />- <br />N A Hews annuus Common Sunflower <br />N P Heterotheca vilosa Hairy False Goklenaster <br />N P Kochra americana Green Molly <br />0.22 <br />- <br />- <br />- <br />0.60 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.26 <br />N P Lepdiummontanum var. m. Mountain Pepperweed <br />N P Lygodesmiajuncea Rush Skeletonpiant <br />N P Phlox longifola Longleaf Phlox <br />- <br />- <br />- <br />0.10 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.26 <br />0.26 <br />I A Portulaca oeracea Purslane <br />I A Ranuncu /us testculatus Curveseed Butterwort <br />I A Salsola ausiraks Russian Thistle <br />- <br />0.11 <br />5.26 <br />- <br />- <br />5.43 <br />25.19 <br />- <br />- <br />19.60 <br />0.29 <br />- <br />- <br />- <br />0.65 <br />- <br />- <br />- <br />- <br />- <br />I A Sisymbrium akasimum Tall Tumblemustard <br />N P Sphaerakea coccinea Scarlet Globemallow <br />Unidentifiable <br />- <br />13.89 <br />- <br />0.20 <br />7.94 <br />- <br />0.25 <br />11.23 <br />0.12 <br />0.34 <br />6.27 <br />- <br />- <br />2.25 <br />- <br />0.33 <br />- <br />- <br />- <br />0.28 <br />4.99 <br />0.26 <br />3.14 <br />- <br />Sub- shrubs <br />N P Ceratoiies/anata Wnterfat <br />N P Gutierrezia saroth,ae Broom Snakeweed <br />213 <br />l 0.45 <br />5.53 <br />2.51 <br />2.84 <br />0.37 <br />2.021 <br />034 <br />2.05 <br />7.07 <br />I 0.67 <br />7.44 <br />2.22 <br />5.76 <br />Shrubs & Cacti <br />N P Artemara tridentata var. wyo. <br />N P A(rp/ex canescens <br />N P Atrp/ex gardneri <br />- <br />- <br />0.26 <br />N P Opuntia potyacantha Prickly -Pear <br />- <br />- <br />- <br />2.64 <br />2.57 <br />0.67 <br />- <br />- <br />0.26 <br />Summary by {Deform: <br />Perennial Warm Season Grasses <br />Perennial Cool Season Grasses <br />Annual Grasses <br />Perennial Forbs <br />Annual & Biennial Forbs <br />Noxious / Aggressive Weeds <br />Sub- Shrubs <br />Shrubs & CactI <br />18.70 <br />46.36 <br />6.61 <br />13.89 <br />5 94 <br />1.46 <br />2.57 <br />4.48 <br />45.43 <br />21.91 <br />5 93 <br />9.05 <br />5.93 <br />0.10 <br />8.04 <br />3.62 <br />19.88 <br />30.99 <br />4.32 <br />11.85 <br />25.93 <br />- <br />3.21 <br />3.83 <br />40.20 <br />21.05 <br />5 71 <br />6.27 <br />19.93 <br />- <br />2.35 <br />4.48 <br />15.25 <br />22.87 <br />0.59 <br />1.76 <br />0.29 <br />- <br />2.05 <br />57.18 <br />10.93 <br />12.54 <br />- <br />4.50 <br />- <br />- <br />7.07 <br />64.95 <br />7.36 <br />37.12 <br />3.68 <br />2.01 <br />- <br />- <br />0.67 <br />49.16 <br />13.59 <br />30.42 <br />0.65 <br />1.94 <br />0.65 <br />- <br />7.44 <br />45.31 <br />18.56 <br />69.53 <br />3.05 <br />6.37 <br />0.28 <br />- <br />2.22 <br />- <br />29.32 <br />56.81 <br />3.14 <br />4.19 <br />0.26 <br />- <br />5.76 <br />0.52 <br />Diversity (Number of Species with between 3% - 40% Relative Cover): <br />No. of Warm Season Perennial Grasses (3% - 40% Rel. Cover) = <br />No. of Cool Season Perennial Grasses (3% - 40% Rel. Cover) = <br />No. of Perennial Farts (3% - 40% Rel. Cover) = <br />N M N <br />--NI <br />N M NI <br />NM NI <br />I <br />NN OI <br />--el <br />I <br />N N O <br />N M O <br />N O N <br />N O N <br />CEDAR CREEK ASSOCIATES, Inc. <br />Page A - 2 Hamilton Mine - 2011 - Appendix A <br />Phase III Bond Release Evaluation <br />