MacOS High Sierra (version 10.13) is the fourteenth major release of macOS, Apple Inc.'s desktop operating system for Macintosh computers. MacOS High Sierra was announced at the WWDC 2017 on June 5, 2017 and was released on September 25, 2017. Yosemite Village. High Sierra Camps. Tuolumne Meadows Lodge. White Wolf Lodge. Things to Do. Experience Yosemite National Park *NEW* Sample Itineraries. High Sierra Camps. The series of five camps are spaced 6 to 10 miles apart along a loop trail