East of the Kathmandu Valley lies Sun Kosi valley which provides the main trade route the Khumbu Himalayas with the highest peaks af Cho Oyu, Everest and Makalu.
East of the Kathmandu Valley lies Sun Kosi valley which provides the main trade route between Nepal and China. The Khumbu Himalayas with the highest peaks af Cho Oyu, Everest and Makalu.