The 'Huella Andina' is a long distance trail, located in the Northern Patagonia region, linking Lake Aluminé (Neuquén), with the area of Baguilt - Trevelin (Chubut). All sections of the route are divided into stages and are intensively marked to facilitate their journey by walking with little technical knowledge of guidance and mapping. They use existing tracks and trails that are integrated together to create this path backbone, whose total length exceeded, once completed, the 540 km.
Note: Not all sections of the trail are complete. More details (in Spanish) can be found here:
http://huellaandina.tur.ar/ it appears the Huella Andina project is no longer being supported :( but you can find an informative site here