International Mountain Day is celebrated annually on 11 December to to create awareness about the importance of mountains to life .The right-most peak is Mt Nuptse (7,861 m) .Mt Everest (8,848 m) is the (barely) visible peak behind the left ridge of Nuptse. location Kala Patthar (meaning 'black rock' in Nepali) at 5,545–5,550 m .Best wishes for happy holidays and a magnificent New Year.