I stopped making my own TOPO maps there are so many free routable Garmin map sites out there no need to make your own.
Here is just some of them I have been using over the years:
[Only registered and activated users can see links. ]
OR
[Only registered and activated users can see links. ]
OR
[Only registered and activated users can see links. ]
OR
[Only registered and activated users can see links. ]
These all work on the Oregon 600 and no need to use mapsource or basecamp software.
Like babj615 points out just copy the .img file to \garmin folder on the memory or SD card.
Most handhelds will let you give each map .img a different name.
No need to have to make any maps just download and install and you are set to go.
Plus if you need to install these maps on your PC you can do that too.
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