Historical Marker
Rockwall County
Historical marker location:
East Rusk Street, Rockwall, Texas
( Historic Rockwall County Courthouse grounds, south side facing East Rusk Street)
Marker installed: 1936
Formed from Kaufman County. Organized March 1, 1873. April 23, 1873 Named for a curious geological formation, an underground rock wall, that comes to the surface in several localities County seat, Rockwall.