About: Las Conchas Fire

The Las Conchas Fire was a large wildfire in the state of New Mexico, in the United States, in 2011. The fire started in Santa Fe National Forest and burned more than 150,000 acres, threatening Los Alamos National Laboratory and the town of Los Alamos. After five days of burning, it became the largest wildfire in New Mexico state history at the time. It was surpassed in 2012 by the much larger Whitewater-Baldy Complex Fire and in 2022 by the Calf Canyon/Hermits Peak Fire and the Black Fire making the Las Conchas Fire the fourth-largest fire in New Mexico's recorded history.