GTA V's rural / desert region north of Los Santos — anchor of Trevor Philips's storyline, home to Sandy Shores, Paleto Bay, and the wilderness that makes V's map larger than its predecessors.
Leonida — the fictional Florida-analog state that hosts the entire GTA VI map. Vice City is its primary urban anchor; Leonida Keys is its southern coastal chain.
The fictional Florida-Keys analog of GTA VI's state of Leonida — a coastal island chain south of Vice City, confirmed in trailer footage and Newswire copy.
GTA V's primary urban core — the modern reimagining of Rockstar's Los Angeles analog city, first seen in 2004's San Andreas, fully rebuilt for V's 2013 launch.
GTA V's iconic mountain in northern Blaine County — and the locus of one of the most enduring community-speculation mysteries in modern gaming, anchored by an in-game mural that hints at hidden content fans have analyzed for over a decade.
Trevor Philips's home base in GTA V — a desert-coded, Salton-Sea-analog town in central Blaine County, anchoring V's most explicit satire of inland California / Nevada border culture.
The primary urban core of GTA VI's state of Leonida — a modern-day reimagining of the Vice City franchise setting, last visited in 2002's GTA: Vice City.