Thanks. Yes it should have been 100 not 25. Is there a help file anywhere explaining this type of function? -- View this message in context: http://osgeo-org.1560.n6.nabble.com/Only-show-some-of-the-contours-using-a-query-builder-tp4878790p4878858.html Sent from the Quantum GIS - User mailing list archive at Nabble.com.