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II. METHODS • SAMPLING DESIGN Prior to initiation of fieldwork, the permit document and applicable maps were reviewed to evaluate topography, reclamation timing, seed mixes, revegetation methods, and applicable revegetation standards. • • A map of the mine site at 1:2400 scale (1"=200') was used to delineate the revegetated areas (Coors Site Plan; Vegetation Sampling Locations}. On a gridded overlay of the revegetation map, a Cartesian coordinate grid (50x50 feet) was established. Computer generated random numbers were used to establish a pool of x,y coordinates. Since the reclaimed parcels for the years and areas to be evaluated were non-contiguous (e.g., separated by road corridors or reclamation years), each revegetated area was gridded sepazately. The acreage of each revegetated area was established. Random sample locations were established for each revegetated azea. Within each yeaz's revegetation pazcels, sufficient samples were established to represent each discontinuous area by proportional acreage. The following table identifies and locations of each parcel quantitatively sampled, the acreage, and the number of cover and herbaceous production samples taken. Location Cover (# of samples) Herb. Prod. (# of samples) Os ood Sand Ref. Area 10 15 1995 Reclamation Areas NW Road Comdor 10.5 ac. 3 5 W of sediment nd 1.4 ac. 1 1 Ti le 7.4 ac 2 3 E of A Pit 8.1 ac. 2 3 E of'87 Wes[ area 1.7 ac. 1 I S of sediment nd 3.1 ac. 1 2 Total Sam les 1995 Areas 10 15 1997 Reclamation Areas S of B Pit 8.6 ac. 5 7 E of B Fit 3.6 ac. 2 3 W of A Pit 1.4 ac. 1 1 Road Corridor (4.5 ac J 2 4 Total Sam les 1997 Areas 10 15 1998 Reseed/Iuterseedin S of sediment nd 6.2 ac. 3 4 S of'87 Area 9.7 ac. 4 6 W of Du out 2.0 ac. 1 2 W of A Pit 2.7 ac. 1 2 E of'87 Area (1.6 ac. I 1 Total Sam les Reseedin 10 15 -2-