--- Start of Idrisi List message Dear list members, I am trying to import 1/250,000 land use/land cover files from a USGS website (http://edcwww.cr.usgs.gov/doc/edchome/ndcdb/ndcdb.html). The files are supposedly in CTG format. Idrisi Help says that I have to specify the layer I want to extract (layer 4 for lu/lc) but on the USGS website the layers are already listed separately. When I go through the import procedure with the file for lu/lc my whole image consists of zeros. It is hard to believe that the four images I downloaded are all empty (I tried Fresno, CA, Detroit, MI, Pensacola, FL and Daytona Beach, FL) but I do not find a status map. What am I missing? Thanks. Johan Liebens Dept. of Environmental Studies University of West Florida 11000 University Parkway Pensacola, Fl 32514 USA Phone: (850)4742065 Fax: (850)8576036 http://www.uwf.edu/environmental/ --- End of Idrisi List message IDRISI-L is an unmoderated list. As a service to list users, please post a summary of useful responses to your questions. To post a message to IDRISI-L, send it to [EMAIL PROTECTED] To subscribe to the list, send an email from the address to be subscribed to [EMAIL PROTECTED] with "subscribe" (without quotes) as the first line of the message body. To unsubscribe, do the same, only with "unsubscribe" as the first line of the message body.