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 of Contents
1.0 Introdudion .................................................................
2.0 Results & Dis~vssion ................................................................................................................. S
2.1 Overall Summary ...................................................................................................................5
2.2 East Pit ................................................................................................................................. ]2
2.2.1 EP030 - 7"' Year -Cover, Diversity, Production, & Woody Plant Density ................. ]2
2.2.2 EP031- 7"' Year -Cover, Diversity, Production, & Woody Plant Density ................. 13
2.2.3 EP036 - 4'" Year -Cover, Diversity, & Woody Plant Density .................................... 14
2.2.4 EP037 - 2'" Year -Emergent Density & Woody Plant Density ................................... 15
2.2.5 EP039 -1~` Year -Emergent Density & Woody Plant Density ................................... 16
2.2.6 EP040 -1~` Year -Emergent Density & Woody Plant Density ................................... 17
2.2.7 EP041-1" Year -Emergent Density & Woody Plant Density ................................... 18
2.2.8 EP042 - 2'" Year -Cover, Diversity, & Woody Plant Density .................................... 19
2.2.9 EP043 - 2nd Year -Cover, Diversity, & Woody Plant Density .................................... 2D
2.2.10 EP044- i~` Year -Emergent Density & Woody Plant Density ................................. 21
2.3 West Pit ............................................................................................................................... 22
2.3.1 WP005 - 7"' Year -Cover, Diversity, Production, & Woody Plant Density ................ 22
2.3.2 WP008- 4"' Year -Cover, Diversity, & Woody Plant Density ................................... 23
2.4 Section 16 ............................................................................................................................ 24
2.4.1 S16011- 7"' Year -Cover, Diversity, Production, & Woody Plant Density ................ 24
2.4.2 S16012 - 7"' Year -Cover, Diversity, Production, & Woody Plant Density ................ 25
2.4.3 S16013 - 7°i Year -Cover, Diversity, Production, & Woody Plant Density ................ 26
• 2.5 Fire Area ..............................................................................................................................
2.5.1 FA001- 2i° Year -Cover, Diversity, & Woody Plant Density ................................... 27
27
2.5.2 FA002 - 2id Year -Cover, Diversity, & Woody Plant Density ................................... 28
2.5.3 FA003 - 2'~ Year -Cover, Diversity, & Woody Plant Density ................................... 29
2.6 Summary by Area ................................................................................................................ 30
2.6.1 East Pit .................................................................................................................. 30
2.6.2 West Pit ................................................................................................................. 34
2.6.3 Section 16 ............................................................................................................. 37
2.6.4 Fire Areas .............................................................................................................. 40
2.7 Summary by Year ................................................................................................................ 43
2.7.1 1997 Revegetation .................................................................................................. 43
2.7.2 2000 Reveg~tion ........................°-................°---...............................°--............... 47
2.7.3 2002 Revegetation .................................................................................................. 51
2.7.4 2003 Revegetation .................................................................................................. 55
2.8 Reference Areas ................................................................................................................... 57
2.8.1 Mountain Brush Reference Area ............................................................................. 57
2.8.2 Sagebrush Reference Area ..................................................................................... 57
2.9 Planted Seed Establishment ................................................................................................... 63
3.0 Conclusions & Reoommendations ........................................................................................... 67
4.0 Literature Cited ...................................................................................................................... 70
In-Text Tables, Charts, Figures, and Maps
Map 1 -Vegetation Sampling Unit Locations - 2004 .........................................................................3
• Table P -Precipitation at the Colowyo Mine, 2001 - 2004 ................................................................4
Chart P -Precipitation by Growing Season at tfie Colowyo Mine, 2001 - 2004 .................................4