I have a feature class that contains ~4000 polygons that represent catchments as well as subcatchments within those catchments. Therefore, many of the polygons within my feature class overlap entirely with other polygons in the same feature class. Is there a way for me to delete all of the polygons within this feature class that share their areas with larger polygons (essentially deleting all the subcatchments), such that I'm left with only the largest polygons (the catchments)? I'd like to avoid manually selecting only the catchments as I hope to use whatever method I end up using on a much larger dataset of polygons. Any help would be greatly appreciated.
Thanks in advance.