![](http://www.alamy.com/thumbs/6/E883BBE7-81EE-41FB-9DF1-7CB9B6D6D6CC/2ACJG7C.jpg)
Sunset over mountains. Photographed in southern Arizona, USA.
Size: 5129px × 3413px
Photo credit: © DAVID NUNUK/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: america, american, arizona, astronomical, astronomy, astrophysics, atmosphere, cloud, clouds, culgoora, dusk, evening, glow, haze, landscape, meteorological, meteorology, mountain, mountains, narrabri, nature, north, observatory, purple, range, ranges, research, setting, solar, states, sun, sunrise, sunset, telescope, twilight, united, usa, weather