The astronomical body that XXX is on is what?
Norgay Montes
The Norgay Montes (/ˈnɔrɡeɪ ˈmɒntiːz/; less officially, Norgay Mountains) are icy mountains, near the Hillary Montes, that reach 3.4 km (2.1 mi; 11,000 ft) above the surface of the dwarf planet Pluto, bordering the southwest region of Sputnik Planum in the south of Tombaugh Regio (or the part of Tombaugh Regio south of the equator).