Explore the Andes mountains' extremes and celebrate the animals that call it home on a 4,000-mile journey along the western edge of South America, from icy Southern Patagonia to the oxygen-deprived Altiplano plateau to the northern tropical Andes.
2009
2010
1960
2000
2007
1978
2006
—
2019
2002
2004
1951
2001
2017