You may have room on the GPS for an additional map. The Garmin maps should have the extension IMG. So plug it in look in the folder for the GPS and I think it’s called the Garmin folder. Look in there for IMG. They have large files. Also check and see how much room you have left and before you mess with it copy all the files over to a folder on your computer. Just in case I have an old 1030 and I think I put additional maps on an SD card. They were recognized in the map list But run slower. At least look at the folders in the GPS and then do some little searching. You’ll figure it out.