I used phyghtmap to create a huge file (60GB) of 10m equidistance osm.pbf contourlines data. phyghtmap --jobs=2 --polygon=/home/contourlines/bounds/asia.poly --step=10 --no-zero-contour --void-range-max=-420 --output-prefix="Asia10m" --line-cat=500,100--start-node-id=10000000 --start-way-id=10000000 --source=view1,srtm1,view3,srtm3 --max-nodes-per-way=230 --max-nodes-per-tile=0 --pbf I am not fully sure that this pbf file is correct, but I created it exactly the same way as smaller countries. Maybe its also phyghtmap going wrong. But I doubt it with phyghtmaps incremental approach of just constantly writing out data. When splitting it with splitter - and opening up one of the osm.pbf files in JOSM - I noticed it contains only the contourline nodes, no lines. I think the Asia continent file spans 360 degrees - so maybe that causes problems with splitter? I have uploaded a splitted file here: https://openmtbmap.org/75400407.osm.pbf If you load it in Josm, you will notice it is alll the points but no lines... -- Felix Hartman - Openmtbmap.org & VeloMap.org