​Rockwall County

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Marker Text: ​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. (1936) 

Marker No:  6147

1936 Pink Granite County Marker 

Geographic: ​32° 55.877′ N, 96° 27.597′ W

Location: ​101 East Rusk Street, Rockwall