I am trying to splice many 1:24,000 DEM's, but i want a seamless complete coverage. I keep getting NULLs that are messing up the image. Please help, how do I get rid of the NULLS so that I can splice all these DEM's together! I haven't used Vertical Mapper that much, but it seams like it should be able to do this. Please give me a run down on some type of procedure to slice mutliple DEM's together! Thanks Sean Morgan TerraGraphics Enviromental Engineering, Inc. Moscow, ID 83843 ---------------------------------------------------------------------- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]