Open source mapping for Garmin GPS. What do you use?

[Blue Hills]

Am pretty sure they will be - just check online.

I do know that many long distance cycle routes in Italy are very imperfectly signed on the ground, but the routes can clearly be seen on OSM.

 

[gom]

There is lots of useful info on the OSM wiki above, & fortunately you don’t have to worry about creating a Garmin-compatible map yourself. There are lots of prebuilt ones which can be found via the wiki. Just download and copy the .img file of your choice.

When I got my eTrex 30+ I tried many of them for look and feel. For me the best is http://www.openfietsmap.nl/. I use for Britain & France.

The significant differences for me were the way the various colours showed up. On my old etrex Vista I used https://www.freizeitkarte-osm.de/, but on the 30 the colours weren’t good

 

[matticus]

Is there any way to view the maps [.img files] that came free on my etrex?
Ideally a Windows package (or website) so that I can use a full-size monitor and scroll around.

Purpose: to exactly determine the coverage.
Reason: to decide what/whether to update to, and if I can delete one of them to free up space.
Also, to help assess any new maps.

Of course I can scroll around using the GPS display - and I have done this - but that is a very very painful method!

 

[StuAff]

Is there any way to view the maps [.img files] that came free on my etrex?
Ideally a Windows package (or website) so that I can use a full-size monitor and scroll around.

Purpose: to exactly determine the coverage.
Reason: to decide what/whether to update to, and if I can delete one of them to free up space.
Also, to help assess any new maps.

Of course I can scroll around using the GPS display - and I have done this - but that is a very very painful method!

BaseCamp, from Garmin.com, should do the trick.

 

[matticus]

BaseCamp, from Garmin.com, should do the trick.

UPDATE: not sure what I did, but it can now see the maps on my eTrex (sort of - it's a pretty quirky interface).
But it's not really doing what I want. Hopefully you can see from this screenshot, where I've selected my EuropeNE map, and zoomed out to try to see the extent: NAmerica looks much the same as all of Europe. I can veeeeerrrrrrryyyyyyyy slooooooowwwwwwwwly zoom into specific areas, but this is kinda still Square One - it's trial and error! Gosh darnit. I suspect I need to somehow copy the map onto my hard drive so that Basecamp can read it faster, but instructions are like hens teeth to do this.

HISTORY - text below is superceded by text above:
Thanks. I did try that, but when the "Maps" function tried talking to the etrex I got some weird message like
"No unlockable maps available (or on this device. Or something" ... anyway, it didn't display any maps!

I will try updating the software. Current version is probably from the stone age. Possibly predates my bike ...

 

[JonBuoy]

UPDATE: not sure what I did, but it can now see the maps on my eTrex (sort of - it's a pretty quirky interface).
But it's not really doing what I want. Hopefully you can see from this screenshot, where I've selected my EuropeNE map, and zoomed out to try to see the extent: NAmerica looks much the same as all of Europe. I can veeeeerrrrrrryyyyyyyy slooooooowwwwwwwwly zoom into specific areas, but this is kinda still Square One - it's trial and error! Gosh darnit. I suspect I need to somehow copy the map onto my hard drive so that Basecamp can read it faster, but instructions are like hens teeth to do this.
View attachment 746797

HISTORY - text below is superceded by text above:
Thanks. I did try that, but when the "Maps" function tried talking to the etrex I got some weird message like
"No unlockable maps available (or on this device. Or something" ... anyway, it didn't display any maps!

I will try updating the software. Current version is probably from the stone age. Possibly predates my bike ...

This rather dated post may help: https://forums.garmin.com/apps-soft...indows/61052/see-osm-gmapsupp-img-in-basecamp