Tenzing Norgays partner to the summit of Mount Everest in 1953 was Edmund Hillary.
The correct spelling for the mountain is Mount Everest.
Mount Everest* is approximately 8,848 metres or 29,029 ft.
Mt. Everest is located in the Mahlangur region of the Himalayan mountains, which serves as a type of "border" for Nepal and the People's Republic of China as the land at Everest is split in terms of the two countries' territorial ownership.