Avenida Libertador General Bernardo O'Higgins (English: General Liberator Bernardo O'Higgins Avenue), popularly known as 'La Alameda' (meaning, a street bordered by poplar trees), is the main avenue of Santiago, Chile. It runs east-west in the centre of the greater urban area and is 7.77 km (4.83 mi) long,[1] and it has up to 5 lanes in each direction.[2] It was named after Chile's founding father Bernardo O'Higgins. It was originally a branch of the Mapocho River.