Are they gpx routes or gpx track files? Easier to do it with gpx tracks files. You can of course open them with notepad and copy and paste to form a single track. If you put them somewhere I can join them using garmins basecamp which give a visual method where you can also snip and add bits.
Cheers. I opted for the lazy version in the end of loading up all the routes and just loading up the next one when I got to the points that they intersected.
Are they gpx routes or gpx track files? Easier to do it with gpx tracks files. You can of course open them with notepad and copy and paste to form a single track. If you put them somewhere I can join them using garmins basecamp which give a visual method where you can also snip and add bits.