I have a Meridian Gold GPS that I use for hunting and checking my spedometer on my old bike. I discovered my 800B was off 10%. Speedo indicated 77 when GPS says I'm doing 70. Anyway, I just set my location (home) before leaving and then if you have any questions along the way about getting home you just fire it up and it points you in the right direction and tells you how far it is away. It's a great tool. I have the "mapsend" function for dowloading maps from a disc that shows all roads in an area but I have not used it yet.
Hope this helps.
DJ
Hope this helps.
DJ