Within the Andes
South America’s second longest tunnel
There aren’t many tunnels in South America. The tunnel Las Raíces is the longest one in the Andes mountain range and second longest of all South America. It has been opened in 1939 and is 4,5 kilometers long. It is located on a road leading from Temuco, Chile to Argentina and connects the wonderful valley of Lonquimay, Chile to the main part of the country.