Topo1a.7z

: Use a tool like 7-Zip or The Unarchiver to decompress the .7z file.

.img files are intended for direct placement into the /Garmin folder on a GPS device's micro SD card. TOPO1a.7z

: Once extracted, you will typically find a .gmap folder or a .img file. : Use a tool like 7-Zip or The Unarchiver to decompress the