The high Lunag Ri is located on the Himalayan main ridge on the border between Nepal and Tibet. Lunag Ri is west of Cho Oyu (). The Jobo Rinjang () forms a southeastern secondary summit of Lunag Ri. On the southern flank of the Lunag Ri runs the Lunag glacier. In the east flows the Nangpa glacier. On the northern slope lies the feeding area of the Shalong glacier.