REP31952

• Permit No: C1981019
• IBM Index Class Name: Report
• Doc Date: 3/16/2005
• Doc Name: 2004 ARR Section 9
• From: Colowyo Coal Company L.P.
• To: DMG
• Permit Index Doc Type: Annual Reclamation Report
• Media Type: D
• Archive: No

Table 6 -Vegetation Cover -West Pit Revegetation -Average Cover Summary - 2004 ................. 35
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Table 7 -Vegetation Cover -West Pit Revegetation -Relative Cover Summary - 2004 ................... 36
Table 8 -Vegetation Cover -Section 16 Revegetation -Average Cover Summary - 2004 .............. 36
Table 9 -Vegetation Cover -Section 16 Revegetation -Relative Cover Summary - 2004 ............... 39
Table 10 -Vegetation Cover -Fire Area Revegetation -Average Cover Summary - 2004 .............. 41
Table 11 -Vegetation Cover -Fire Area Revegetation -Relative Cover Summary - 2004 ............... 42
Chart 10 - 1997 Revegetation (7 Growing Seasons) -Average Cover by Lifeform - 2004 ............... 44
Chart 11 - 1997 Revegetation (7 Growing Seasons) -Relative Cover by Lifeform - 2004 ................. 44
Table 12 - 1997 Revegetation (7 Growing Seasons) -Average Cover Summary - 2004 .................. 45
Table 13 - 1997 Revegetation (7 Growing Seasons) -Relative Cover Summary - 2004 .................... 46
Chart 12 - 2000 Revegetation (4 Growing Seasons) -Average Cover by Lifeform - 2004 ............... ~
Chart 13 - 2000 Revegetation (4 Growing Seasons) -Relative Cover by Lifeform - 2004 ................. 48
Table 14 - 2000 Revegetation (4 Growing Seasons) -Average Cover Summary - 2004 ..................49
Table 15 - 2000 Revegetation (4 Growing Seasons) -Relative Cover Summary - 2004 .................... Sfl
Chart 14 - 2002 Revegetation (2 Growing Seasons) - Averse Cover by Lifefortn - 2004 ............... 52
Chart 15 - 2002 Revegetation (2 Growing Seasons) -Relative Cover by Lifeform - 2004 ................. 52
Table 16 - 2002 Revegetation (2 Growing Seasons) -Average Cover Summary - 2004 .................. 53
Table 17 - 2002 Revegetation (2 Growing Seasons) -Relative Cover Summary - 2004 .................... 54
Table 18 -Seedling Density Summary - 2003 Revegetation (1st Growing Season) - 2004 ................ 56
Chart 16 -Seedling Density Summary - 2003 Revegetation (1st Growing Season) - 2004 ................ 56
Table 19 -Vegetation Cover -Reference Areas -Average Cover Summary - 2004 ........................ 58
• Table 20 -Vegetation Cover -Reference Areas -Relative Cover Summary - 2004 ......................... 59
Map 18 -Vegetation Sampling Point Locations -Mountain Brush Reference Area - 2004 ................ 60
Map 19 -Vegetation Sampling Point Locations -Sagebrush Reference Area - 2004 ........................ 61
Plate 1 -Photograph of the Mountain Brush Reference Area - 2004 .............................................. 62
Plate 2 -Photograph of the Sagebrush Reference Area - 2004 ...................................................... 62
Table 21 -Seeds Planted vs. Resulting Ground Cover by Year of Revegetation - 2004 ................... 64
Chart 17 -Comparison of Seeding Success by Year of Revegetation -Grasses - 2004 .................... 66
Chart 18 -Comparison of Seeding Success by Year of Revegetation - Forbs - 2004 ...................... 66
Chart 19 -Comparison of Seeding Success by Year of Revegetation -Shrubs - 2004 .................... 65
Appendix AA -Methodology for Vegetation Sampling /Comparison Methods - Colowyo Mine
1.0 Sample Site Selection /Location ...................................
2.0 Determination of Ground Cover ...................................
3.0 Determination of Current Annual Production ................
4.0 Determination of Woody Plant Density .........................
5.0 Determination of Seedling Emergence ..........................
6.0 Sample Adequacy Determination ..................................
7.0 Success Evaluation ......................................................
Exhibit 1 ............................................................................
.........................AA - 2
......................................AA - 3
......................................AA - 5
...................................... AA - 5
......................................AA - 6
......................................AA - 6
...................................... AA - 7
...................................... AA - 4
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