Easily create your own cycling maps for your Garmin Edge device - great for when you want to create/combine larger regions. This will generate a file named “gmapsupp.img” if you already have a file with the same name, all you need to do is rename the NEW file to “gmapsup1.img”.
Pre-compiled maps created using Edge Map Creator:
http://edgemapcreator.mooo.com/Maps
YouTube:
https://youtu.be/1lc-mW3cKkA
Download:
Edge Map Creator - http://edgemapcreator.mooo.com