Purchase price $59M[93] Six Flags New England Agawam, Massachusetts 1870 1997 Oldest park in the Six Flags chain, predating the founding of first Six Flags Park by nearly a century. Acquired in Premier Parks deal, formerly Riverside Park. Six Flags Over Georgia Austell, Georgia 1967 Built by Six Flags Like Six Flags Over Texas, the park is owned by a limited partnership and is managed and operated by Six Flags.