Week 7: DEMs in ArcGIS

The area, which was examined in this lab, was a region in Colorado in the United States. The extent was 39.8291666661 decimal degrees at the top, 39.3838888883 decimal degrees at the bottom, -105.788888889 decimal degrees at the left, and -104.969444445 decimal degrees at the right. The geographic coordinate system that was used was the North American GCS of 1983 (GCS_North_American_1983). The area in Colorado mostly consists of the Arapaho National Forest just west of the city of Denver. In the three-dimensional image, the elevation is shown to be inconsistent, therefore indicating that the area is most likely mountainous. The aspect model indicates that there is a variance in which way the features face, whether north, south, east, or west. The slope model indicates how steep or shallow the slope of a feature is.