Quote Originally Posted by catymag View Post
I think he simply wants to add transparent contours to a routable map, easy with GmapTool
Yes

I wanted to see a Garmip DEM map of South America together with a topo map of Argentina (this last is transparent and have the lines of altitude in meters over the sea)
I did with gmaptool, but only could create an img file and then import from a pendrive with Basecamp



Thanx, it works