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PEABODY COAL COMPANY ROCKY MOUNTAIN DIVISION 1097D EAST HARVARD AVENUE SUITE 400 DENVE R. COLO RADO 80391 (909) 337-DB09 June 13, 1983 ~ \y-l .. ..~ .J ~~ ~. 'I Mr. Jim Herron !• I ! „s3 Reclamation Specialist Mined Land Reclamation Division MI~'cD LP,iti') RFCLP,~AAT(Oid 423 Centennial Buildino Colo. Dept. of F~aiural Reso!irce~ 1313 Sherman Street Denver, Colorado 80203 RE: Seneca II-W Vegetation Sampling, Summer Field Season 1983 Dear Mr. Herron, The resampling program for vegetation baseline data at Seneca II-W has entered the field phase with location and erection of plot exclosures at sampling points. As of June 9th, all affected area and reference area exclosures have been placed in the field. The placement of ex- closures in the field is a little later than normal this year because of a late winter season. Snow and muddy conditions restricted access much later than usual, however, it also delayed the livestock turn in date so that little or no livestock grazing has occurred on the permit area or reference area locations. The lateness of the season may also affect the field sampling time frame by moving it into late July or possibly early August. On June 1st I contacted Dan Mathews about a needed change in the aspen reference area location. Field surveys from the previous day resulted in positive location of only the mixed brush and sagebrush grassland reference areas. Positive location of the aspen reference area was not possible after an extensive search, review of the maps, and comparison of the summary data for the original area. It was decided to relocate the reference area and complete a sampling program for the new reference area and affected area which includes production, cover and shrub/three density measurements. The attached map shows the location of the new reference area. It is located immediately to the south of the southeast corner of the Seneca II-W pro- posed permit area. A benefit of this relocation is that the new reference area represents the various aspects of the aspen affected area very well.