The Air Force has launched a massive rescue operation in Uttarakhand's Lamkhaga Pass at an altitude of 17,000 feet where 17 trekkers, including tourists, porters, and guides, lost their way on October 18 due to heavy snowfall and inclement weather. 11 bodies have been recovered so far from the area leading to the Lamkhaga Pass - one of the most treacherous passes connecting the Kinnaur district in Himachal Pradesh with Harsil in Uttarakhand.