-
geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:416842
-
www.rockdale-il.com/ (11 Aug 2003)
The Village of Rockdale is a small Illinois community near Joliet in the County of Will about 35 miles southwest of Chicago,IL - USA
-
en.wikipedia.org/wiki/Rockdale,_Illinois (9 Aug 2010)
-
geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:2399104