The Tunnel of Santa Maria, Zunil: 100 Years since the beginning of its construction

A century ago, in 1925, the construction of the Tunnel of Saint Mary of Jesus began, a key work for the passage of the Railroad of Los Altos. Between 1925 and 1927, deprived of liberty, they worked in their excavation without modern machinery, using only dynamite to cross the rocky massif. Finally, in 1930, the tunnel was inaugurated [...]