Lab 6: DEMs in ArcGIS

3D Image:

In this lab exercise, I choose a regional area of the west Grand Canyon where I just visited in the winter break. I choose this area because I think the dramatic elevation change of the canyon is really suitable to build a beautiful 3D model. What's more, the color ramp I choose is perfect for the shaded relief model and the 3D image: white for the snow cover, brown fro the bare stones and green for the vegetation, which make the images look quite real. The original DEM was retrieved from the USGS Seamless Data server using the 1983 North American GCS datum.


Extent:  
Top: 36.301 
Bottom: 35.994
Left: -114.15
Right: -113.561