mount gyachung kang 7952m near cho oyu sunset view

gyachung kang gyachungkang himalaya mount mountain mountains everest asia asian beautiful blue cho oyu cloud conservation evening glacier gokyo great high hiking himalayan himalayas khumbu landscape nature nepal ngozumba panorama peak range red reserve ridge rock face sagarmatha scenery scenic serac sky skyline snow summit sunset top travel trek trekking view 7952m colored three passes route national park valley