Megalith City is the acestral counterpart of Megakat City near from Megakat City.
In SWAT Kats Season 1 Episode 6:Dark Ages, Megalith City is ruled by Queen Callista is Calico "Callie" Briggs and her father Mayor Herb Briggs's Ancestor.
In SWAT Kats Season 3 through Season 5:
Ages later, Present Megalith City and County is the largest town with near from Megakat City on Rockland County,NY
Mayor Herb Briggs is the current head of city government, with Ansel Jensen who serves as the sheriff leads the city sheriff’s designated paramilitary defense force,Megalith City Sheriff Office in Season 3 through season 5