On this site you can download several free maps for Garmin devices, based upon OpenStreetMap (OSM) data and updated at 7 October 2016.
The next update will be available at the end of October. The use of these maps is at your own risk.
OSM is not error-free. Please improve OSM at www.openstreetmap.org to create better maps for yourself and others.
As an anti-spam measure you need to register to acquire access to the download page