using Garmin’s MapSource TOPO maps but need much more detail than is provided by their 1:100,000 scale.
Is it possible to install USGS quad maps on my Garmin GPSMAP 76CSx receiver? If so, I assume they would need to be converted to be compatable with the Garmin technology. Is there any reasonably-priced software available for such a conversion? Is there a third-party source for obtaining already converted maps? Or is my assumption that they could even be converted wrong?
USGS maps are raster images (pictures). Mapping GPSs use vector images. Vector images …