The mountain is located on the border between Piedmont and Aosta Valley and its summit is the tripoint where Valle dell'Orco meets the Valsavarenche and the Val di Rhêmes, both tributaries of Dora Baltea. The Col Leynir (Leynir Pass, 3,084 m, NE of the summit) divides the mountain from the Mont Tout Blanc, while the Orco/Valsavarenche ridge continues towards SW with Col Rosset (3,023 m) and Punta Rosset (3,100 m). From the Punta Leynir originates the Orco/Val di Rhêmes ridge, heading SE. After a saddle at 3,112 m it rises to the neighbouring Punta Bes (3,177 m) and then it goes down reaching the Colle del Nivolet. The summit of Punta Leynir is flanked from SW by a subsummit, divided from the main summit by a 350-m stretch of ridge, not difficult to traverse. The mountain, due to its location, offers a very good view on the nearby massif of Gran Paradiso.