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<br />-s- <br />a scale o£ 1" = 400': <br />1. Grassland (pasture) <br />2. Upland sagebrush <br />3.- Agriwltural (alfalfa meadows) <br />4. Juniper <br />5. Riparian <br />6. 7?aanstead (i.e., ranch house and ancillary facilities). <br />7. Disturbed (i.e., roads and current mining operation) <br />Farh napping unit within the a~rnxiniately 106 acre study area was delin- <br />• _ eared on a reproducible mylar image of the aerial phomgraph Prior to <br />mllection of field data. Ground truth'^g of type delineations took <br />place durirg field sailing. lbr affected areas, each randanly located sam- <br />ple point was transferred to a topographic base map by measuring from obvious <br />larrhnarlcs. Fach sale point thus represented a ground truth location and <br />allowed efficient and accurate field mound truthing of affected area <br />type delineations. Ground truHring of type delineations over the rest of <br />the study area was amrnplished by field spot dne~cing at selected locations. <br />Once the prelindnazy vegetation nap was ground trvthed for accuracy oral <br />corrected, all wrrect vegetation type delineations wem transferred to <br />a 1" =400' topographic base map. Thus, the distortion associated with <br />aerial photographic rrosaics was eliminated in the final vegetation map <br />iTi' transferring all information to the correct topographic base map. Acre- <br />. ages of each mapping unit were determined by sta.a.~.w ~~ planimeter <br />tedaiiques applied to the final topographic base map. 7u ensure accurate <br />acreage deta++n+nation, each mapping unit was apac++*~ twice (or more if <br />meas~u'anents varied by rrore than 56) and the average used to compute <br />acreages. <br />• (Revised March 2006) Attachment 2.05.6(2)-1-10 <br />