The Olympic Freeway is a major highway in Los Santos which Interstate 4 takes the Olympic Freeway designation. It is the unofficial border between Downtown Los Santos and South Los Santos. It is a eight-lane highway. Its western terminus is at the La Puerta Freeway (Interstate 5) junction near Downtown Los Santos. Other major junctions are San Andreas State Route 17 in La Mesa and its eastern terminus with the Del Perro, Palomino, and Elysian Fields Freeway in East Los Santos. It is based on The Century Freeway (Interstate 105) in Central Los Angeles.