The GIS staff at SITLA pointed out an error in the SGID93.Boundaries.Counties data layer which has now been fixed.

The error was a small digitizing error from years back near the western most portion of the shared boundary between Uintah and Grand counties. A correction was made after consulting with the county boundary descriptions in Utah State Code. A similar but different error seems to appear on BLM survey plats of this area and will be brought to the BLM's attention. 

This data layer has been updated on the SGID ArcSDE 9.3 database server and in the file geodatabase and shapefile products on the agrc ftp site.

One note, as this error was small and in a very remote area, AGRC does not plan to re-clip all of the county-based file geodatabase and shapefile products to agree with this boundary update. However, from this point forward, the updated versions of the Grand and Uintah county boundaries will be used for any new shapefile and file geodatabase products for these counties.