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r <br />11011, <br />1W <br />Alk <br />MW <br />Table 1 Colo o - Vegetation Cover - 2008 & 2009 (Page 2 of 2) <br />Average Ground Cover Summary Continued <br />Percent Ground Cover Based on Point-Intercept Sampli <br />Sampling Year -> 2008 2009 <br />Area -> Phase III Mountain Sagebrush Weighted Phase III Mountain Sagebrush Weighted <br /> Shrub R.A. R.A. Reference Reference <br />Wei ht-> 100% 55% 45% 100% 55% 45% <br />Forb Continued <br />N P Linum lewisii Lewis Flax 1.15 - 0.20 0.09 - - 0.05 0.02 <br />N P Lomatium dissectum Femleaf Biscuitroot - - 0.10 0.05 - - - <br />N P Lupins caudatus Tailcup Lupine 4.55 - 2.50 2.35 0.65 1.59 <br />N B Machaeranthera canescens Hoary Aster - 0.05 - 0.03 <br />I P Medicagosativa Alfalfa 4.38 - 5.38 - - <br />I P Ono&yrhis viciaefolia Sainfoin 0.08 <br />N P Phlox hoodii Hood Phlox - - 0.20 0.09 0.05 0.02 <br />1 A Ranunculus testiculatus Nut Buttercup 0.15 - - - - <br />N P Senecfo multilobatus Lobeleaf Groundsel - 0.10 0.06 <br />I A Sisymbrium allissimum Tumble Mustard 0.15 - - <br />N P Sphaeralcea coccinea Scarlet Globemallow - 0.40 0.18 0.15 0.07 <br />N P Stellaria jamesia Tuber Starwo 0.27 - - - 0.35 - 0.19 <br />N P Stenotus armenoides Thrifty Goldenweed - 0.15 1.55 0.78 0.15 0.95 0.51 <br />1 P Taraxacum officinale Dandelion 0.08 - - - 0.05 - 0.03 <br />I A 7hlasptamense Field Pennycress 0.15 0.15 - 0.08 0.04 0.30 - 0.17 <br />I B Trdgopogon dublus False Salsify 0.19 0.10 0.30 0.19 - 0.10 0.05 <br />Sub-shrubs <br />N P Ceratoideslanata Winterfat - 0.50 0.23 0.15 0.07 <br />N P Enc yonum microthecum Slender Buckwheat 0.15 0.07 <br />N P Gutierrezia sarothrae Snakeweed 2.90 1.31 2.70 1.22 <br />N P Mahonia repens Creeping Barberry 0.25 0.14 - <br />Shrubs & Trees <br />N P Amelachieralnifofia Serviceberry 0.55 0.50 0.53 0.60 1.05 0.80 <br />N P Arternisia tridentata wyo. Wyo. Big Sagebrush 0.27 12.30 9.55 11.06 0.15 10.60 9.70 10.20 <br />N P Atriplexcanescens Four-wing Saltbush - - - - 0.04 - - - <br />N P Chrysothamnus nauseosus Rubber Rabbitbrush 0.35 0.05 0.22 - 0.15 0.50 0.31 <br />N P Chrysothamnus viscidiflorus Low Rabbitbrush 1.45 0.25 0.91 0.95 0.55 0.77 <br />N P Prunus virginiana Chokecherry 0.10 - 0.06 0.05 - 0.03 <br />N P Querousgambellii GambelOak 2.20 1.21 2.35 1.29 <br />N P Rosa woodsii Woods Rose 0.04 - - - - <br />N P Symphoncarpas oreophilus Mountain Snowberry 6.55 1.55 4.30 7.50 2.55 5.27 <br />Total Plant Cover 69.04 63.00 57.85 60.68 72.88 61.30 48.35 55.47 <br />Roc 0.92 0.50 2.40 1.36 0.77 0.65 2.55 1.51 <br />Litte 22.59 31.30 25.60 28.74 20.46 33.20 37.20 34.97 <br />Bare ground 7.35 5.20 14.15 9.23 <br />"1 5.88 4.85 11.90 8.02 <br />Total Perennial Cover 64.15 9-5.59" 1 34.70 45.89 <br />1 70.62 54.65 39.60 47.88 <br />Summa b Lifeform: <br />Perennial Grasses 50.15 23.60 16.35 20.34 52.31 27.40 20.35 24.23 <br />Annual Grasses 3.54 6.20 22.05 13.33 1.58 6.15 8.55 7.23 <br />Perennial Forbs 13.69 7.70 2.95 5.54 18.12 5.05 2.05 3.70 <br />Annual & Biennial Forbs 1.35 1.65 1.05 1.40 0.69 0.50 0.20 0.37 <br />Noxious / Aggressive Weeds - 0.10 - 0.06 - - - - <br />Sub-shrubs - 0.25 3.55 1.74 - - 2.85 1.28 <br />Shrubs & Trees 0.31 23.50 11.90 18.28 0.19 22.20 14.35 18.67 <br />Sample Adequacy 'Calculations: <br />Mean = 69.04 63.00 57.85 il.isd 61.30 4t1..iS <br />Variance = 131.08 39.789 87.19 134.51 89.38 29.61 <br />n = 26 20 20 26 20 20 <br />n.in = 4.77 1.77 4.59 4.39 4.19 2.23 <br />CEDAR CREEK ASSOCIATES, Inc. <br />Page 16 <br />Colowyo Coal Company <br />2009 Phase III Bond Release Evaluation