The Google Earth software is available for "free" download from: http://earth.google.com
 

To see the CDT displayed on Google Earth, install & launch Google Earth, then download the file cdt.kml, and save it somewhere on your computer. Then, go to the Google Earth software and select File->Open... and open the file cdt.kml. This file was created by Jonathan Ley.
 


Google Earth map showing view toward the southern border of New Mexico, as the trail passes alon side the Big Hatchet Mountains.