Comment 1 for bug 589328

The map doesn't contain a digital elevation model (DEM). The elevation profile for routes (that is enabled in MapSource and BaseCamp) is derived from the contour lines. I've confirmed that this doesn't work for tracks (neither in MapSource nor in BaseCamp). Probably the reason is that for tracks a proper DEM is needed. Unfortunately the format for the DEM isn't known yet, so it is not possible to write it into the map. Therefore, this bug can't be fixed until the DEM format is reverse-engineered.