Hi all, I'm looking for a documentation where the GRASS data structure is described (data storage format, content of cellhd-, colr-file...). Thanks, Thomas Thomas Vieth Mannesmann Eurokom GmbH Tel.: 49-(0)711/9902-234 Am Wallgraben 125 Fax: 49-(0)711/9902-141 70565 Stuttgart e-mail: tvieth at eurokom.de