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• <br />General Introduction <br />TAB 10 <br />VEGETATION <br />Baseline vegetation studies were conducted on the Yoast Mine permit area in 1990, 1992, <br />and 1994. The baseline study area totals 2960.1 acres while the mine permit area ~~ <br />encompasses a slightly smeller area of 2253.3 acres. The vegetation studies were <br />completed to fulfill the requirements in Rule 2.04 of the Rules and Regulations of the <br />Colorado Mined Land Reclamation Board (CXLRB) for Coal Mining and were generally <br />structured on the current CM LRB vegetation guidelines. ESCO Associates Inc. (ESCO) of <br />Boulder, Colorado conducted 'all baseline field studies. Vegetation mapping, including <br />areas within the one half mile habitat buffer, was completed by Peabody Coal Company (PCC) <br />personnel in 1990, 1992, and 1994. Mapping within the study areas was verified by ESCO <br />personnel during the 1990 and 1992 field studies. <br />• Summary of Vegetation Studies <br />1990 Vegetation Studies. The 1990 baseline vegetation study area included ell potential <br />mining areas and associated disturbances but excluded the as yet, undefined haul road <br />corridor. The study area was somewhat larger than the proposed permit area to provide <br />buffers for permit area extension if needed. Figure 1 illustrates the relationship of the <br />1990 study area to the permit area. <br />The 1990 studies were conducted according to the CMLRB "Guidelines for Compliance with <br />Land Use and Vegetation Requirements" with some minor modifications. The study design was <br />discussed with Carl Mount and Mat Hayes of the Colorado Mined Land Reclamation Division <br />(CMLRD) and Vern Pfannenstiel of PCC in a meeting on April 14, 1990. CMLRD approved the <br />study design, with added clarification, in a letter from Carl Mount (CMLRD) to Vern <br />Pfannenstiel (PCC) on May 9, 1990. Sampling methods and sample parameters for the 1990 <br />studies are detailed in Attachment 10-1, 1990/1992 Vegetation Report. Sampling <br />intensities were to adequacy for cover and to specified maximums for production and <br />density. Table A22 in the 1990/1992 Vegetation Report summarizes sampling intensities for <br />• the various parameters- <br />1992 Veae[a[ion Studies. The supplemental 1992 baseline studies were conducted in the <br />1 Revised 03/01)95 <br />