Department: no towns over 5,000 people. Florentino Ameghino Department: no towns over 5,000 people. Escalante Department: Comodoro Rivadavia (km 1831-1838) and Rada Tilly (km 1843). Santa Cruz Province Length: (km 1856-km 2674) Deseado Department: Caleta Olivia (km 1908-1911). Magallanes Department: access to Puerto San Julián (km 2252). Corpen Aike Department: Comandante Luis Piedrabuena (km 2372). Güer Aike Department: Río Gallegos (km 2607-2609). Tierra del Fuego Province Length: (km 2696-km 3059). Río Grande Department: access to San Sebastián (Chile) (km 2740), Río Grande (km 2818) and Tolhuin (km 2934). Ushuaia Department: Ushuaia (km 3036-3041). Tolls In 1990 administration and maintenance of the most travelled roads was given to private companies with rights to collect tolls dividing the areas in "Corredores Viales" ("road corridors"). "Servicios de Mantenimiento de Carreteras" (Semacar) company, took charge of Corridor number 1, which includes Route 3 between km markers 19 and 677, in Buenos Aires Province, from the joining with Provincial Route 4 in San Justo to Bahía Blanca, with tolls collected in Cañuelas (km marker 78), Azul (km marker 263) and Tres Arroyos (km marker 523)., In 2003 the concession contracts expired, which led to a modification of corridor numbers and a call for a new public bid. Corridor Vial number 1 is now given to "Empresa Rutas al Sur" and runs from km marker 62 to 677 which corresponds to the crossing of Provincial Route 6 in Cañuelas until it joins National Route 252 in Grünbein. References National roads in Buenos Aires Province National roads in Río Negro Province National roads in Chubut Province National roads in Santa Cruz Province, Argentina National roads in Tierra del Fuego Province, Argentina Tourism in Argentina