One of three bays containing 4 mirror arrays, one for each of the Fluorescence detector telescopes. The fluorescence detectors are part of the Telescope Array Project used to detect and observe cosmic rays.
"The Telescope Array project is an international collaboration involving research and educational institutions in Japan, Taiwan, China, Russia, South Korea, and the United States. The experiment is designed to observe ultra-high-energy cosmic ray air showers using a combination of ground array and air-fluorescence techniques. It is located in the high desert in Millard County, Utah (USA) at about 1,400 meters (4,600 ft) above sea level."
Utah is a state located in the westcentral region of the United States of America. Utah is the 13th largest state by area, ranks 34th by population and 10th by population density of the 50 United States. Utah was the 45th state to be admitted into the Union, on January 4, 1896. Utah is landlocked, being bordered by the states of Idaho to the north, Wyoming to the northeast, Nevada on the west, Colorado on the east and Arizona to the south. Utah is very mountainous and is a popular outing destination of the outdoorsman. The state population is about 2.82M with 95% being Caucasian, 2.4% Asian, 1.7% Native American and 1.3% Black. The state capital and largest city is Salt Lake City.Source: wikipedia