Valles Caldera Valles Caldera dates back to the prehistoric times: spear points dating to 11,000 years ago have been discovered. Several Native American tribes frequented the caldera, often seasonally for hunting and for obsidian, used for spear and arrow points. Obsidian from the caldera was traded by tribes across much of the Southwest. Eventually, Spanish and later Mexican settlers as well as the Navajo and other tribes came to the caldera seasonally for grazing with periodic clashes and raids. Later as the United States acquired New Mexico as part of the Treaty of Guadalupe Hidalgo in 1848, the caldera became the backdrop
Marisol Valles García the most dangerous places in the world. Residents hide in houses from fear of violence and death. In nearby Ciudad Juárez in October 2010, a gang killed over a dozen people, including children, at a birthday party. Several police officers in Ciudad Juárez have been abducted or killed, and Praxedis G. Guerrero's previous chief, Manuel Castro, was tortured and beheaded a year earlier. With all but three police officers having quit, mayor José Luis Guerrero desperately sought solutions. After a year without a police chief, 20-year-old Marisol Valles Garcia, who was a student working on a degree in criminology at