drawing outline lines inside polygons only

Question

I'm trying to map out a correlation between two substances using polygon fill to denote one substance and the outline color to denote the second. I have been told that it is possible to set ArcMap so that the polygon outlines only draw on the inside of their polygons to prevent the outlines from overlapping. Does anyone know how to accomplish this?

DanPatterson_Retired · Answer

Jeremy, could you mark Wes's answer correct so people can see that there was a resolution to this question.  It help people when doing searches.  thanks

jeremywoelke · Answer

Thank you very much. That was exactly what I was looking for.

WesMiller · Answer

See this thread Help with outline symbology on overlapping ploygons