Hays Quarry
Austin Materials operates four asphalt plants and two aggregate quarries between North Austin and San Antonio and one liquid asphalt terminal in Houston. Background On. Hays Quarry. Hays Quarry, also known as Nehemiah Pit, is a limestone quarry loed off of RM 967 on Ruby Ranch near Buda, Texas. The operation covers approximately 450 acres. As an advoe of environmental stewardship within ...