create a footprint polygon around a multiple polygons

Discussion created by chocolatte on Mar 21, 2013
Latest reply on Mar 21, 2013 by dlee-esristaff
Hi, I have a set of parcels and I want to create a footprint polygon around multiple parcels to represent a study area. I know this can be achieved visually using symbol levels, but I need it to be a separate dataset. I tried the buffer tool using a very small buffer distance, but there is still empty space in the resulting buffer (see attached). In the past I've created polygons to "cover" the empty space and then merged all the polygons to create a solid polygon, but I was hoping there is a tool that can take care of the process. I'm working with ArcGIS 10.0.

Thanks, Charlotte