----------------------------Original message---------------------------- Sincere apologies if this is not the proper list to post a topo msg to. Last year my company purchased most of the US from a reseller of topo data. I have a few holes in the US where we still dont have 3-seconds of arc DEM data. The original ascii data from USGS is freely copiable, (at least it was last July when USGS sent me a fax saying so!). Therefore I would like to know: 1. if there is a site where to get/put DEM data? 2. If another agency/person would like to exchange some ascii DEM files? Jean-Marc Paquet 5 Le Beaudy Gatineau, Qu J8V 1P3 Maison/Home: tel:819-246-3612 fax:819-561-9227 Internet address: [log in to unmask]