Originally Posted by
Steve B.
As stated above, not all Garmins come loaded with the same maps and it’s not typical for Edge models to have Topo maps, which might be useful off-road.
As example, off-road/dirt road routes I’ve created for some Adirondack rides, while showing fine in a OSRI Topo map on RWGPS, only show a route in a green blob area on my Edge 1000, using the provided cycling map, with no detail otherwise. I added the Garmin Topo map to see where these roads exist on a functional screen map,
The 1030 displays contour lines.
It's not too hard to create an overlay (transparent) map with contour lines that can be used with any map on any Edge unit (that use maps) starting with the 800. (Overlay maps are a cool feature.)
The Edges can use Garmin's topo maps (but those might not always have routing data.)
I sort of wish the maps didn't include the green blobs (they make useful stuff harder to see).