Aloha all- I am relatively new to working with mkgmap, so I apologize if I'm doing something really stupid. I am trying to make a routable map of Illinois, in the USA. I was able to do so for Wisconsin without any problem, but with the Illinois osm.bz2 file I downloaded both from cloudmade.com and geofrabrik.de, I get a completely empty map on my Garmin 62st. Here are the parameters I'm using: java -Xmx4000m -jar ~/splitter-r179/splitter.jar illinois.osm.bz2 Then I build the map with: java -jar -Xmx4000M ~/mkgmap-r2012/mkgmap.jar --max-jobs --adjust-turn-headings --ignore-maxspeeds --ignore-turn-restrictions --remove-short-arcs=4 --mapname="Test Illinois" --description="Test Illinois" --net --route --transparent --gmapsupp -c template.args This worked fine for the wisconsin.osm.bz2 file I have, but not Illinois. I downloaded an Illinois map from http://garmin.openstreetmap.nl/, and it worked perfectly. I searched around for the parameters he's passing to mkgmap, and I built this command from it: java -Xmx2048M -ea -jar ~/mkgmap-r2012/mkgmap.jar --code-page=1252 --name-tag-list=name:en,int_name,name --remove-short-arcs --add-pois-to-areas --make-opposite-cycleways --description='Zesty Ill NL Test' --net --route --series-name='OSM World Routable' --gmapsupp -c template.args But again no joy. Is it possible the splitter parameters are wrong for what I'm trying to do? Thanks for any info, Tacho