In honour of former Prime Minister Atal Bihari Vajpayee, four Himalayan peaks near Gangotri glacier have been named after him, an official said on Saturday. The four peaks named after Vajpayee are located at 6,557, 6,566, 6,160 and 6,100 metres on the right flank of Gangotri glacier, said Colonel Amit Bisht, principal of Nehru Institute of Mountaineering and leader of the mountain climbing team.