Title: Mac OSX 10.11 El Capitan Background
Resolution: 3840 x 2160

Mac OS X El Capitan (version 10.11) was released by Apple in September 2015. The default desktop background for macOS El Capitan is an image of the El Capitan rock formation in Yosemite National Park. El Capitan is a vertical rock formation known for its sheer granite cliffs and is a popular destination for rock climbers.

The El Capitan wallpaper is a stunning shot of the rock face, showcasing its grandeur and rugged beauty. It captures the essence of Yosemite National Park, which is known for its breathtaking landscapes.