|Location||Tombaugh Regio, Pluto|
|Peak||6.2±0.6 km (3.9±0.4 mi)|
The Tenzing Montes / / (formerly Norgay Montes) are icy mountains near the Hillary Montes that reach up to 6.2 km (3.9 mi; 20,000 ft) above the surface of the dwarf planet Pluto, bordering the southwest region of Sputnik Planitia in the south of Tombaugh Regio (or the part of Tombaugh Regio south of the equator). They are the highest mountain range on Pluto, and also the steepest, with a mean slope of 19.2 degrees.
The mountains, first viewed by the New Horizons spacecraft on 14 July 2015, and announced by NASA on 15 July 2015, are named after the Nepalese mountaineer Tenzing Norgay, who, along with Sir Edmund Hillary, made the first successful ascent of the highest peak on Earth, Mount Everest (29 May 1953). The mountains were informally called Norgay Montes by the New Horizons team, but that name was later changed from Norgay to Tenzing.[note 1] On 7 September 2017, the name Tenzing Montes was officially approved together with the names of Tombaugh Regio and twelve other nearby surface features.
|Name of range||Peak name[note 2]||Location||Height (km, base-to-peak)|
|Tenzing Montes||"T2"||6.2±0.6 km|
|Tenzing Montes||"T1"||5.7±0.4 km|
|Tenzing Montes||"T3"||5.3±0.4 km|
|Tenzing Montes||"T4"||5.0±0.4 km|
|Tenzing Montes (south)||"T1 1"||4.5±0.4 km|
|Tenzing Montes (south)||"T1 2"||4.4±0.4 km|
The Tenzing Montes rise up to 6.2 km (3.9 mi; 20,000 ft) high, about twice as high as the Hillary Montes. In comparison, Mount Everest rises 4.6 km (2.9 mi; 15,000 ft) base-to-peak (though to an altitude of 8.8 km (5.5 mi; 29,000 ft) above sea level).
- Geography of Pluto
- Geology of Pluto
- List of geological features on Pluto
- List of tallest mountains in the Solar System
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- Akpan, Nsikan (18 July 2015). "Nepal gets a piece of Pluto plus four new surprises from New Horizons". PBS NewsHour. Retrieved 17 August 2015.
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- "Pluto Features Given First Official Names". NASA. 7 September 2017.
- Mount Everest (1:50,000 scale map), prepared under the direction of Bradford Washburn for the Boston Museum of Science, the Swiss Foundation for Alpine Research, and the National Geographic Society, 1991, ISBN 3-85515-105-9
- Gipson, Lillian (24 July 2015). "New Horizons Discovers Flowing Ices on Pluto". NASA. Retrieved 25 July 2015.