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• Another set of land use determinations was also made based on an interpretation of the <br />State of Colorado's 1973 "photo quads". (These "photo quads" correspond in scale to the <br />U.S.C.S. 1:24,000 topographic maps.) The two sets of land use determinations were then <br />compared. Differences between the two analyses as well as land use photo signature <br />questions and any other interpretation problems were all noted on U.S. Geological Survey <br />topographic maps ("topo quads") for field checks and verification. <br />State of Colorado "photo quads" were also used to identify general regional land uses as <br />well as those adjacent to the proposed haul road. Again, any interpretation problems were <br />noted on the appropriate topographic maps for later field verification, <br />Land Use Mapping. All land use determination problems noted on the "topo quads" were <br />resolved as a result of field investigations carried out in September of 1979. Following <br />field verification, draft maps of land use were prepared at several scales: Regional, <br />1;126,720; and Adjacent Area, Haul Road, and Mine Permit Area, 1:24,000. <br />Prior to preparation of land use maps for the final report, the draft maps were updated <br />• using a bl ueline print (1:400) of aerial photography flown on June 1, 1980. Field checks <br />of the updated material were performed during December 1980. <br />During 1990, black and white and color stereo photography, supported by ground truthing, <br />was used to document current land use within and adjacent to the permit and proposed <br />expansion areas. <br />Premini ng Land Use <br />Land use associated with the proposed Seneca II-W coal mining operation was examined at <br />two different scales: (1) Regional Patterns; and (2) Adjacent Areas and Mine Permit Area. <br />Regional land use is intended to show the relationship between various types of land use <br />and the Mine Permit Area. Consequently, because of these intentions and the map scale, <br />these land use categories and boundaries are highly generalized. Using a larger scale, <br />land use adjacent to the Mine Permit Area and the proposed haul road was examined. Some ~~ <br />generalization resulted since adjacent areas were examined to determine: (1) continuity <br />of land use categories found in the Mine Permit Area and (2) the proximity of specific I <br />• categories to the Mine Permit Area and haul road. Sitespecific land use involved a <br />determination of types of land use found within the Seneca 11-W Mine Permit Area. At each <br />5 <br />