How do I use multiple map (.img) files to help me better manage maps on my Garmin Oregon?
Even though Mapsource and MapInstall always save maps sets as [drive]:\Garmin\gmapsupp.img this file can be renamed once it is on the Oregon to any name (as of beta software 2.99) as long as the .img extension is preserved. This is very helpful if you want to manage multiple maps sets, say one for your home area that would change infrequently and one for a travel destination(s) that you might change frequently. The steps for doing this are: • Follow the procedure in M15 to create and download your home map set • Using a file explorer on your computer locate [drive]:\Garmin\gmapsupp.img and rename the file to [drive]:\Garmin\myhomemaps.img • Follow the procedure in M15 to create and download your travel map set When you are done with your travel map set this file can be deleted and replaced with a new map set for your next destination without having to rebuild and transfer your home map set.