Hi, Is there any good and recent detailed reference and examples on how to run r.topmodel? I've found only several old dicussions on the topic. Thanks, EKS -- Eduardo Klein Lab Sensores Remotos e Instituto de Tecnología y Ciencias Marinas Universidad Simón Bolívar Caracas, Venezuela ph (58) (212) 906-3111 ext 6700 fax (58) (212( 906-3111 ext 6701