I have been trying to plot elevation profiles for a track I have thru the mountains in southern Utah. Neither Mapsource or Basecamp give an accurate profile. Mapsource is closer to reality than Basecamp. When I manually look at elevations in the track I can see where it goes over 10k ft in places. Basecamp shows it going from 6500 to 7500 ft with basically two flat lines. I have tried viewing the profile with 3 mapsets - Topo West, Topo 24k, and even City Navigator all with the same results. Any suggestions about what might be the problem? Edit: I found the problem. There is virtually no elevation data in the track. I created most of it from a route using WinGDB3. I must have spliced in a small section of a real track with elevation data. But Basecamp spread this elevation data out over the entire track in creating the graph. When I create a route in Basecamp, I get a good elevation plot.