People of the Volcano

While it now attracts many tourists, the Colca Valley of Peru’s southern Andes was largely isolated from the outside world until the 1970s, when a passable road was built linking the valley—and its colonial churches, terraced hillsides, and deep canyon—to the city of Arequipa and its airport, eight hours away. Noble David Cook and his co-researcher Alexandra Parma Cook have been studying the Colca...