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• KenneCOtt Energy <br />Colowyo Coal Company, L.P. <br />Colowyo Mine <br />2004 REVEGETATION MONITORING REPORT <br />L°3G~`'/L~Cc3G4GQ4IIOGl V ~I~°u G3C~C~GG3(~GYi6(~ QG3C~G.1~o <br />GP030 G~71?OOg ~5a60Iln I~p00Il ~ilo~~~a C3G3M~Cil <br />GP03a G'~7P00£e3 ~fl60a3 f~G10073 ~a~r~aQ~~a <br />f~P0~36 ~a60a~3 l;'p003 <br />C~P03~7 <br />G(?039 <br />I~f?040 <br />Gp04a <br />f~P04L <br />• ~ ° u 4}~3 <br />GG°PO <br />1.0 INTRODUCTION <br />Cedar Creek Associates, Inc. (Cedar Creek) was contracted in 2004 by Colowyo Coal Company <br />(Colowyo) to implement a vegetation monitoring program within selected revegetated units at the <br />Cobwyo Mine. Monitoring was performed in the interest of ascertaining progress toward revegetation <br />success in generel accordance with Rule 3.03, Release of Perfomwnce Bonds. The revegetated areas <br />evaluated in 2004 consisted of 18 total units ranging in size from 2.0 acres to 68.3 acres. At the time of <br />sampling, revegetation within evaluated units had experienced one, two, four or seven growing seasons <br />folkswing completion of seeding. In addition, two reference areas (Mountain Brush and Sagebrush) were <br />sampled to provide Dover and production comparison values to facilitate an evaluation of success for the <br />reclaimed units. The location of each unit and reference areas evaluated in 2004 is indicated on Map 1 <br />and the sample points within each area are provided on Maps 2 - 19 in Section 2.0. <br />• Field sampling for the directly measurable variables of ground rnver, current annual production <br />(selected units), seedling emergence (selected units), and woody plant density was systematically <br />Kennemtt energy co. i caowyo Mine Page 1 Revegeta0on Nbnnoring -2004 <br />