There are two base camps, each on opposite sides of Mount Everest. South Base Camp is in Nepal at an altitude of 5,364 metres (17,598 ft) (28°0′26″N 86°51′34″E), and North Base Camp is in Tibet at 5,150 metres (16,900 ft) (28°8′29″N 86°51′5″E). These camps are rudimentary campsites on Mount Everest that are used by mountain climbers during their ascent and descent. South Base Camp is used when climbing via the southeast ridge, while North Base Camp is used when climbing via the northeast ridge. Supplies are carried to the South Base Camp by sherpas or porters, and with help of animals, usually yaks. The North Base Camp has vehicle access (at least in the summer months). Climbers typically rest at base camp for several days for acclimatization; to reduce the risks and severity of altitude sickness. http://www.nepalguideinfo.com www.hikehimalayas.com http://www.nepalguideinfo.com/langtang-region.php Langtang Region