shp files, so i downloaded them the state of interest and i see that there are roads shapes. Trials: i was looking at some online videos and i discovered that you can download. this was also done maybe on a 2mi^2 area, i'd have to do this to a whole state or two. BUT, this is a PIA, JOSM is not a pretty editor and somehow it would still leave golf courses and other buildings even thought i seemed to have deleted all layers but Routes. i got this partially working by downloading a very small region in JOSM, hand deleting all shades, etc., getting down only to the roads and lake outlines, then using mkgmap command with -transparent option and i got a few square blocks to show up on my Garmin overlaying 24K TOPO and showing all the roads that aren't there. img file that i could overlay on top of 24K TOPO. Idea & Partial solution: i had the idea that if i could just do an edit of OSM map myself, extract only the roads from it, that i could make a road-only. I've tried modifying the draw priority with GMapTool of these maps but the OSM map always stomps on 24K TOPO. When I try to enable both of them at once, the OSM map always completely overlays the 24K TOPO and it becomes invisible. I'm using the OSM maps on my GPSMAP66 and they have all of the roads and trails but are lacking the overall design of the 24K TOPO maps. I love the TOPO maps for their overlays, but the roads by now are fairly stale, some of them i don't think were ever correct.
![garmin topo us 24k crack garmin topo us 24k crack](https://www.jayssportinggoods.com/images/image_not_avail_m.jpg)
I have 2 of them because where I live and hike is right on the border of 2 maps. Problem: i have great, but by now fairly old official Garmin 24K TOPO maps.
![garmin topo us 24k crack garmin topo us 24k crack](https://cdn.the5krunner.com/wp-content/uploads/2019/09/IMG_9468.jpg)
I've been trying to find the solution to this for hours, with multiple tools available to me and still don't have an easy solution.