+1 osm
No mapset is perfect. I venture to say they all will get you where you need to go, or close.
The free routable OSM maps are good and getting better every day due to thousands of user that add refinements to the master database every day. The OMS maps tend to be weak on indicating one way streets.
My biggest tip is to say once you have loaded the maps on your computer, be sure to transfer the "tiles" to your GPS device.
The second tip, only download the sections of OMS that you need to use in the near future. the maps will likely improve even more the next time you download them.
FYI - There are several countries in South America that are not currently supported by the Garmin NT South America...
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Peter B
2008/09 - NJ to Costa Rica and back to NJ
2012/13 - NJ to Northern Argentina, Jamaica, Cuba and back to NJ
2023 - Peru, Brazil, Paraguay, Argentina, Chile, Bolivia...back to Peru.
Blogs: Peter's Ride
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