I have been using Zonal Statistics as Table for summarizing average slope by landuse categories. For 10 watersheds that I used, it worked fine. In one watershed, however, I sub-divided the watershed and assigned a number (still an integer) that represented a sub-watershed-landuse combination and tried summarizing and got Error 010160. I used feature data for my zones, not raster, so I'm puzzled why I get an error related to the internal raster conversion. The landuse was originally from a raster dataset that i converted to a shapefile, but it didn't pose any problems with the other watersheds, so I don't know if that has anything to do with it or not. Any ideas? Thanks.
...Gene