
Cerro Las Campanas, at the Las Campanas Observatory (LCO), Atacama Desert, will be home to one of the world’s biggest ground-based telescopes. The mountain is 2,500 meters high and known for its outstanding seeing with over 300 nights of clear skies per year - a result of being in a desert region, where there is only a small occurrence of clouds.
The preparations of the GMT mountaintop site began in 2012, but it only entered the construction phase after being authorized in 2015. Over 250 people work at the construction site. When the GMT is up and running, it is expected to employ 100-150 chileans professionals in technical, administrative and support positions.