Img4 (Windows 10)

img4, known as img3 in Windows 10 Insider Preview builds 10154 to 10158, is a wallpaper included in Windows 10 and its server counterparts. It was taken by Chad Copeland on September 12, 2014. It depicts a camp on a starry night at Mount Rainier, Washington, United States. It crops part of the top but features slightly more space to the left and right of the image.

Other versions
A panoramic version intended for dual display setups named img13, is also included in Windows 10. The wallpaper also appears in portrait form in Windows 10 Mobile.