Valles Caldera
Valles Caldera From Wikipedia, the free encyclopedia Jump to navigation Jump to search Valles Caldera Cerro la Jara, an approximately 246-foot (75 m) high forested rhyolite lava dome within the caldera. Highest point Elevation 11,253 ft (3,430 m) [1] Coordinates 35°54′N 106°32′W / 35.900°N 106.533°W / 35.900; -106.533 Coordinates : 35°54′N 106°32′W / 35.900°N 106.533°W / 35.900; -106.533 Geography Valles Caldera Location in New Mexico Location Sandoval County, New Mexico , US Parent range Jemez Mountains Geology Mountain type Complex Caldera Volcanic arc / belt Jemez Lineament and Rio Grande Rift Last eruption 68,300 ± 1,500 years BP [2] Climbing Easiest route New Mexico State Road 4 U.S. National Natural Landmark Designated 1975 Valles Caldera (or Jemez Caldera ) is a 13.7-mile (22.0 km) wide volcanic caldera in the Jemez Mountains of northern New Mexico . [1] Hot spr