Creating mosaic dataset for basemap

Discussion created by crackernutter on May 24, 2012
Latest reply on May 25, 2012 by erice-esristaff
Hello, I have about 55 geotifs covering the US, and would like to use them to create a basemap to publish in ArcGIS server (see this link for a previous post.  I'm curious if anyone has any suggestions or resources to lead me through the best way to start this process on the ArcMap side.  For instance, should I create a mosaic dataset or a raster dataset?  Also, the rasters have some extraneous information off to the side that I would like to exclude from the basemap (see attached image)[ATTACH=CONFIG]14608[/ATTACH].  Is this even possible to do using ArcMap?  I am experienced with working with vector data and ArcGIS Server, but don't know how to get started on this process or if this is even the wrong way to go about it. 
Thanks, Jay