Provincial Route 55 (San Luis)

Provincial Route 55
Ruta provincial 55
Route information
Length	458 km (285 mi)
Existed	1979–present
Major junctions
North end	National Route 148
South end	RP 105 (La Pampa)
Location
Country	Argentina
Highway system
Highways in Argentina

Provincial Route 55 is a 458 km (285 mi) long paved highway that runs through San Luis Province, from north to south at the eastern end, near the border with the provinces of Córdoba and La Pampa.