Making a "heat map" that counts overlapping polygons

Discussion created by dosbourne on Jun 16, 2011
Latest reply on Aug 2, 2012 by ccummings7
Attempting to symbolize where and how many polygons overlap, making a sort of heat map.  For example, an area where 8 polygons overlap would be symbolized red, whereas an area with only one would be symbolized green.  Only the area of overlap should be considered.  Attempted advanced merges with ET Geowiz, but doesn't retain the attributes for a polygon count.  Was going to then execute a dissolve to get the individual polygons, but without the count info in the attribute table, it wouldn't work.  Ideas?  Currently using version 9.1, making the jump to 10 later this summer.