Mountainous landforms Mountain Mountain range Nature Sky Alps Massif Wilderness Ridge Summit World Atmosphere Cloud Fell Tree Landscape Terrain Space Mount scenery Geology Winter Glacial landform Valley Geological phenomenon Arête Snow Hill National park Cirque Night Rock Mount Everest Gokyo Ri Gokyo Lakes Everest base camps Jiri Khumbu Nagarkot Mountain Trekking Mount Everest Trek Summit Sunrise views Himalayas Nepal