There have been a few comments about GPS & elevations.
If you have a GPS, it may be interesting for you to look at this:-
Down load the new Trackmaker (gtm130.exe) from here:-
D/L Google Earth, from here:-
Install it all, open a track & select the data on the screen, then press the Google earth button on the Trackmaker tool bar. It’s combined & calibrated automatically! I have a ride I did 2 years ago, Albany 2 Perth, but a little differnt to the GWABR route, you can see some major fetures along the way. If anyone is interested & want to know more contact me & I will provide more info.