Originally Posted by njkayaker

One way to get them into BaseCamp is to create a virtual USB disk and put the img file into a \Garmin folder on the disk.

You could use an actual USB or SD card too.

Make sure the virtual disk is indicated as “removable” (otherwise BaseCamp won’t see it).

Note you can rename the map file.

I use the following software.

Tools and utilities for Windows

I create a shortcut to “mount” the drive.