sourceGPS.com  

There’s a few places on the internet that offer FREE (as in beer) user generated maps for Garmin GPS owners. Of course nothing replaces a comprehensive map database but if you’re planning on traveling to foreign lands check out these maps to see if they’ll get you around to where you want to go - it might save you a few bucks in buying a whole map disc that you might not even use.

First here’s a couple of sites with a lot of maps:

Map Center
Free Garmin GPS Maps

Here’s some more sites with specific location maps.

Australia - Tracks for Australia
Canada - Canadian ‘eh’ Topo Maps
Caribbean - This maps site has maps of Japan, Bermuda and Antarctica too.
China - Yunnan Explorer
Greece - Greece GPS Maps
Morocco - Maps of Morocco
New Zealand - The New Zealand Open GPS project
South America - Argentina and Uruguay with some more countries on the way.

If you don’t have it already you’ll need a utility to help you get your .img files to your Garmin GPS you can download Img2GPS to help you along with that.

Don’t forget that a lot of these projects are all driven by public contribution, if you think you can help the project in some way don’t be too shy to send them an inquiry.