I have been processing DLG's using v.in.dlg with the 'matt' option. Has anyone written or been using a script to automate selecting desired attribute codes and converting the resulting file to a dig_cat file? If so please respond to: Sharon Shin National Biological Survey sharon at its.nbs.gov 303-969-2599 (voice) 303-969-2822 (fax) THANKS!!! $:^)