You've probably already told me how to do this but how do you save a downloaded ADVOSM img file to a PC hard drive in a way that allows Basecamp to access it. Space is not a problem, I have circa 505gb of mapping data and space is space whatever device it's held on.
OK here goes- you're wearing my fingers down you know!
You go
here
Scroll down to the word Download Maps and click
(link here)
There are pictures explaining all the various regions/maps
For the Garmin which you say you gave the 66s I think it was do
NOT download the HD maps as these will not display correctly.
Decide if you want the map containing contour data or not
Once you have chosen your map, look to the right for the down icon - which offers you a choice of copy link, share or download and choose
Once the map has downloaded it should be in your downloads folder.
As windows likes for some unknown reason to block files, I always RIGHT click once on the map and chose the 'unblock' option and apply (found in properties)
Then I either rename the map with a name which suits me better or just copy and paste it in the Garmin folder or SD card
Job done.
To speed things up a download manager helps.
Over to you for more experimenting!
Any more requires private consulting with incurring charges!
