Originally Posted by
Tourist in MSN
Since I have only used general recreation GPS units, I do not know if or how to load alternative maps to a cycling GPS, or even if it is possible or not. In post number 4 above I listed two links for maps that I use for non-cycling GPS units. But one of them, I can't really explain how to get the maps from the site to my GPS, as I do not remember how I did it. But the BBB bike maps were pretty easy for me to load into my Garmin 64. NJKayaker knows how to use those sites, ask him if it works and how to.
The Edges use the same maps that your unit does.
Copy the “img” file to the \Garmin folder on the device.
The Edges need the “Latin” maps (Unicode doesn’t work).
The alternative maps aren’t really going to look better than the maps that come with the device. Though, people might prefer different looks.
The bbbike site is a good source (there are other good sources too). I like having the option to create custom versions (bbbike provides custom regions).
https://extract.bbbike.org/