Dear all, Inadvertently, I produced a raster with an extra row of empty values (marked with NODATA). The ArcInfoASCGridImporter class reads the raster cell by cell, requesting a double through java.util.Scanner. Since NODATA is not a double the Scanner class raises an InputMismatchException. I am attaching this rogue raster file. In this patch the NODATA value is hard coded. I am not certain if in this raster format NODATA can be something else. I will study this further. Regards, Luís P.S.: we definitely need to get GDAL working ... I will look into it again one of these days.