made for each study area--one incorporating infrastructure and one disregarding the infrastructure.
Figure 4.5 below shows the digitization results for Area 1, both for highways excluded and highways included. The largest difference occurs at the upper end of Area 1, where it is very difficult to distinguish the contour lines.
Figure 4.5: Area 1 Digitized
The delineation of Area 2 yielded the following, as shown in Figure 4.6. As Area 2 lies within Area 1, the digitization of the upper end of Area 2 replicates the digitization process for Area 1.