I'm new to trying to deal with maps for garmin. I have been been adding/fixing OSM data in my town and am trying to get OSM data onto my Garmin GPS V. This is a serial device that was one of the very earliest ones to support mapping. I went to http://garmin.na1400.info/routable.php and asked for the single map tile that covers my area (Stow, MA, US 01775). I unzipped to get -rw-r--r-- 1 gdt users 158720 Apr 10 11:09 gmapsupp.img which seems pretty small. If I run strings I can see POIs, but I wonder if there are roads. I used $ sendmap17Lstatic /dev/gps -u gmapsupp.img to upload, and the GPS receiver shows that it has the map, and I can see POIs, but I see no roads, even when I'm sure they have been in OSM a long time. Also, when I had asked for multiple tiles, I got a 2MB .img, but my GPS V seems to think it only has data in a small subpart of that. I am running the linux binary of sendmap17Lstatic, but doing so on NetBSD (which has linux emulation). It seems to run fine, but I thought I should mention this. So: Do people think mkgmap maps work on a GPS V? Are the na1400.info maps ok (generated today)? I am on the verge of buying a Vista HCx. Will that work 100% ok with mkgmap? It seems so, but I thought I'd ask. Any other hints?