Other non-free flow toll roads connecting Santiago to other cities, include: Rutas del Pacífico (Ruta 68), the continuation of the ''Alameda'' Libertador General Bernardo O'Higgins Avenue to the west, provides direct access to Valparaíso and Viña del Mar; Autopista del Sol (Ruta 78), connects Melipilla and the port of San Antonio with the capital; Autopista Ruta del Maipo (a.k.a. "Acceso Sur") is an alternative to the Pan American highway to access the various localities south of Santiago; Autopista Los Libertadores provides access to the main border crossing to Argentina, via Colina and Los Andes; and Autopista Nororiente, which provides access to the suburban development known as Chicureo, north of the capital.