Anyone know where the Image Processing Workbench (IPW) code lives? I have seen the GRASS Clippings article on IPW, has anyone else used this system? Any thoughts anyone would like to share? Thanks. Pat McClanahan Internet:mcclanah at dlgeo.cr.usgs.gov EROS Data Center mcclanah at edcserver1.cr.usgs.gov Sioux Falls, SD 605-361-4607