Page "Andes" Paragraph 14

The rough terrain has historically put the costs of building highways and railroads that cross the Andes out of reach of most neighboring countries, even with modern civil engineering practices.

For example, the main crossover of the Andes between Argentina and Chile is still accomplished through the Paso Internacional Los Libertadores.

Only recently the ends of some highways that came rather close to one another from the east and the west have been connected.

Much of the transportation of passengers is done via aircraft.