REP03538

• Permit No: C1981019
• IBM Index Class Name: REPORT
• Doc Date: 4/6/2007
• Doc Name: 2006 AHR & ARR Section 7 Exhibit 7A to Section 9 Exhibit 9A
• From: Colowyo Coal Company L.P.
• To: DRMS
• Annual Report Year: 2006
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Table 16 - 2005 Revegetation (2 Growing Seasons) -Seedling Density - 2006 ..
Chart 14 - 2005 Revegetation (2 Growing Seasons) - Seedline Density - 2006...
... 58
... 58
Table 17 -Vegetation Cover -Reference Areas -Average Cover Summary - 2006 ........................ 60
Table 18 -Vegetation Cover -Reference Areas -Relative Cover Summary - 2006 ........................ 61
Map 13 -Vegetation Sampling Point Locations -Mountain Shrub Reference Area - 2006 .............. 62
Map 14 -Vegetation Sampling Point Locations -Sagebrush Reference Area - 2006 ...................... 63
Plate 1 -Photograph of the Mountain Shrub Reference Area - 2006 ............................................ 64
Plate 2 -Photograph of the Sagebrush Reference Area - 2006 ..................................................... 64
Table 19 -Seeds Planted vs. Resulting Ground Cover by Year of Revegetation - 2006 ................... 66
Chart 15 -Comparison of Seeding Success by Year of Revegetation -Grasses - 2006 .................... 67
Chart 16 -Comparison of Seeding Success by Year of Revegetation -Fortis - 2006 ...................... 67
Chart 17 -Comparison of Seeding Success by Year of Revegetation -Shrubs - 2006 .................... 67
Map 15 -Vegetation Sampling Unit Locations -CSU Shrub Plots - 2006 ...................................... 72
Chart 18 -CSU Shrub Plots -Average Cover by Lifeform (1-5) - 2006 .......................................... 73
Chart 19 -CSU Shrub Plots -Relative Cover by Lifeform (1-S) - 2006 .............................. ............ 73
Chart 20 -CSU Shrub Plots -Average Cover by Lifeform (6-10) - 2006 ............................ ............ 74
Chart 21 -CSU Shrub Plots -Relative Cover by Lifeform (6-10) - 2006 ............................ ............ 74
Table 20 - Vegetation Cover -CSU Shrub Plots -Average Cover Summary (1-5) - 2006 .... ............ 75
Table 21 -Vegetation Cover -CSU Shrub Plots -Relative Cover Summary (1-5) - 2006 .... ............ 76
Table 22 -Vegetation Cover -CSU Shrub Plots -Average Cover Summary (6-10) - 2006 .. ............ 77
Table 23 -Vegetation Cover -CSU Shrub Plots -Relative Cover Summary (6-10) - 2006 .. ............ 78
Chart 22 -Comparison of Average Cover of All Shrubs -Inside vs. Outside Fence (1-5) - 2006 ...... 79
Chart 23 -Silver Sage -Comparison of Average Cover -Inside vs. Outside Fence (1-5) - 2006 ...... 79
Chart 24 -Big Sagebrush -Comp. of Average Cover -Inside vs. Outside Fence (1-S) - 2006......... 79
Chart 25 - Bitterbrush -Comparison of Average Cover -Inside vs. Outside Fence (1-5) - 2006....... 79
Chart 2b -Comparison of Avg. Cover of All Shrubs -Inside vs. Outside Fence Combined - 2006..... 80
Chart 27 -Silver Sage -Comp, of Average Cover -Inside vs. Outside Fence Combined - 2006....... 80
Chart 28 -Big Sagebrush -Comp. of Average Cover -Inside vs. Outside Fence Comb. - 2006....... 80
Chart 29 - Bitterbrush -Comp, of Average Cover -Inside vs. Outside Fence Combined - 2006....... 80
Table 24 -Vegetation Cover -CSU Shrub Plots -Average Shrub Cover (1-S) - 2001 - 2006 .......... 81
Chart 30 -CSU Shrub Plots -Average Shrub Cover -Inside Fence - 2001 (1-S) - 2006 .................. 81
Chart 31 -CSU Shrub Plots -Average Shrub Cover -Outside Fence - 2001 (1-S) - 2006 ............... 81
Table 25 -Vegetation Cover -CSU Shrub Plots -Avg. Shrub Cover Combined - 2001 - 2006......... 82
Chart 32 -CSU Shrub Plots -Average Shrub Cover -Inside Fence - 2001 Combined - 2006........... 82
Chart 33 -CSU Shrub Plots -Average Shrub Cover -Outside Fence - 2001 Combined - 2006 ........ 82
Table 26 -Woody Plant Density -CSU Shrub Plots -Average Shrub Cover (1-6) - 2001 - 2006 ..... 83
Chart 34 -CSU Shrub Plots -Shrub per acre by Species (1-5) - 2006 .......................................... 83
Table 27 -Woody Plant Density -CSU Shrub Plots -Avg. Shrub Cover Combined - 2001 - 2006.... 84
Chart 35 -CSU Shrub Plots -Shrub per acre by Species Combined - 2006 ................................... 84
Chart 36 -CSU Shrub Plots -Comparison of Shrubs per acre -Inside vs. Outside Fence (1-5) ....... 85
Chart 37 -Silver Sage -Comparison of Shrubs per Acre -Inside vs. Outside Fence (1-S) .............. 85
Chart 38 -Big Sagebrush -Comparison of Shrubs per Acre -Inside vs. Outside Fence (1-S).......... 65
Chart 39 - eitterbrush -Comparison of Shrubs per Acre -Inside vs. Outside Fence (1-S) ............... 85
Chart 40 -CSU Shrub Plots -Comp. of Shrubs per acre -Inside vs. Outside Fence -Combined ..... 86
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