Mountain guide traversing a crevasse, Island Peak, 6189m, Solu Khumbu Everest Region, Sagarmatha National Park, Himalayas, Nepal, Asia

A climbing team with views of Ama Dablam, Everest region, Himalayas, Nepal, Asia

Prayer flags at Everest Base Camp, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

A line of climbers on the Lhotse Face, Mount Everest, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

The Khumbu icefall on Mount Everest, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Tents at Everest Base Camp, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Crossing ladders on the Khumbu icefall on Mount Everest, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

A climber makes her way down an ice wall in preparation for climbing Everest, Himalayas, Nepal, Asia

A climber on Everest makes his way across a crevasse using a temporary ladder, Khumbu Region, Nepal, Asia

A climber on Everest makes her way across a crevasse using a temporary ladder, Khumbu Region, Himalayas, Nepal, Asia

Climber on an ice wall, Chukhung Valley, Solu Khumbu Everest Region, Sagarmatha National Park, Himalayas, Nepal, Asia

Tents at Everest Base Camp, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Climbers on the Lhotse Face at 7000m on Mount Everest, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Climbers on the Lhotse Face at 7000m on Mount Everest, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Climbers on the Lhotse Face at 7000m on Mount Everest, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Crossing ladders on the Khumbu icefall on Mount Everest, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Prayer flags at Everest Base Camp, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

A line of climbers on the Lhotse Face, Mount Everest, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Tents at Everest Base Camp, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Climbers on the Geneva Spur, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Camp 3 at 7100m on the Lhotse Face, Mount Everest, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Climbing practice near Everest Base Camp, Khumbu Region, Himalayas, Nepal, Asia

Climber on summit ridge of Island Peak, 6189m, Ama Dablam, 6812m, Solu Khumbu Everest Region, Sagarmatha National Park, Himalayas, Nepal, Asia

A woman stands by her tent shortly after climbing Everest, Khumbu Region, Himalayas, Nepal, Asia

Tents at Everest Base Camp, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

Ice climbing in Chukhung Valley, Solu Khumbu Everest Region, Sagarmatha National Park, Himalayas, Nepal, Asia

A climber makes her way down an ice wall in preparation for climbing Everest, Khumbu Region, Nepal, Asia

Climbers at Camp 1 on Mount Everest, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

A climber practises on an ice wall in preparation for climbing Everest, Khumbu Region, Nepal, Asia

Climber on summit ridge of Island Peak, 6189m, Ama Dablam, 6812m, Solu Khumbu Everest Region, Sagarmatha National Park, Himalayas, Nepal, Asia

A climber practises on an ice wall in preparation for climbing Everest, Khumbu Region, Nepal, Asia

Nepali porter carries a heavy load using traditional wicker basket and tump headband in the lower Hingku Valley, close to Lukla and Mount Everest, Khumbu region, Himalayas, Nepal, Asia

A climber tackles a difficult boulder problem on the glacial moraine at Tangnag, near Mera Peak and Mount Everest, Khumbu Region, Nepal, Himalayas, Asia

Climbers on an ice wall, Island Peak 6189m, Solu Khumbu Everest Region, Sagarmatha National Park, Himalayas, Nepal, Asia

Crossing ladders in the Khumbu icefall on Mount Everest, Solu Khumbu Everest Region, Sagarmatha National Park, UNESCO World Heritage Site, Nepal, Himalayas, Asia

A Sherpa near Dingboche hauling gear to Everest Base Camp for the climbing expeditions stops for a quick rest, Khumbu Region, Nepal, Asia

Climbers on an ice wall, Island Peak 6189m, Solu Khumbu Everest Region, Sagarmatha National Park, Himalayas, Nepal, Asia

A climber at Everest Base Camp the day after he has attempted climbing Everest showing signs of exposure at high altitude, Khumbu Region, Nepal, Asia

Camp IV, 4 (7950m), South Col, Mount Everest, with view on Nuptse, Himalaya, Nepal

Viennese climber Geri Winkler on a ladder overcoming a crevasse of Khumbu Icefall, ca.5600 m, Mount Everest, Himalaya, Nepal

Climber between bizarre ice sculptures of Khumbu Icefall above Base Camp, Mount Everest, Himalaya, Nepal

Mountain guide Vern Tejas and Lhakpa Rita Sherpa with tibetan praying flags on the summit of Mount Everest 8848m, Himalaya, Nepal

Female climber with crampons on a rope in lower Khumbu Icefall, Base Camp, 5300m, Mount Everest, Himalaya, Nepal

Climbers on fixed ropes in the steep, icy Lhotse Face, 6900m, on the way to Camp III, 3, Mount Everest, Himalaya, Nepal

Crossing of a crevasse by ladder, Western Cwm, 6000m Mount Everest, Himalaya, Nepal

Yellow tents and crew tents in camp II, 2, Western Cwm, 6500m, Mount Everest, Himalaya, Nepal

Camp IV, 4 (7950m), South Col, Mount Everest, Himalaya, Nepal

Sherpa at a Puja ceremony for the goddess Miyo Langsangma, Base Camp, 5300m, Mount Everest, Himalaya, Nepal

Tibetan praying flags between the tents in the Base Camp, 5300m, in the back the summit of Mount Lingtren, 6600m, Mount Everest, Himalaya, Nepal

View out of a tent in camp II, 2, 6500m, Western Cwm, Mount Everest, Himalaya, Nepal

Climbers on the Summit Ridge to the summit of mount Everest, 8848m, as seen from South Summit, 8751m, Himalaya, Nepal

Yellow tents, alpinists and equipment in Camp IV, 4, on South Col, 7950m, Mount Everest, Himalaya, Nepal

view from Lhotse Face direction west to the summit of Pumori, 7145m, Mount Everest, Himalaya, Nepal

Yellow tents and peak in Camp II, 2, Mount Everest, Himalaya, Nepal

Tents in camp II, 2, 6500m, Western Cwm, Mount Everest, Himalaya, Nepal

Mountaineers climbing Everest's Khumbu Icefall

Mountaineer climbing Everest's Khumbu Icefall

The medical tent at Everest Base camp. The tent is in operation for the whole of the climbing session on Mount Everest.

Climbers make their way to Advanced Basecamp (ABC) through the massive Western Cwm (glacial valley) on the Southeast Ridge route on Mt. Everest, Nepal. Everest's Southwest Face rises to the left with Lhotse and the Lhotse Face in the distance. Jake Norton, 4, 20, 2002, Western Cwm, Everest, Nepal.

Mountaineers climbing up the Khumbu Icefall on the route up Everest, Everest Base Camp, Khumbu, Nepal

High Mountain Rangers Tom Ditola and David Weber are taking a rest on the West Rib on Mount McKinley, Alaska. Mount Hunter in the background. They are above the clouds in blue sky and the sun is shining. Mount McKinley, native name Denali, is the highest mountain peak in North America, with a summit elevation of 20,321 feet (6,194 m) above sea level. At some 18,000 feet (5,500 m), the base-to-peak rise is considered the largest of any mountain situated entirely above sea level. Measured by topographic prominence, it is the third most prominent peak after Mount Everest and Aconcagua. Located in the Alaska Range in the interior of the U.S. state of Alaska, McKinley is the centerpiece of Denali National Park and Preserve. Every climbing season High Mountain Rangers of the Denali National Park Service are called to help climbers in need. If possible the patient is brought down to base camp on foot, only in life threatening conditions a helicopter is called to evacuate the patient to a hospital in Anchorage.

Mountain ranger Brian Scheele on this way to Windy Corner on Mount McKinley, also know as Denali, in Alaska. He is pulling a sled, that together with his heavy backpack is containing all the gear like tents, clothing and food. Every climbing season High Mountain Rangers of the Denali National Park Service are called to help climbers in need. If possible the patient is brought down to Basecamp on foot, only in life threatening conditions a helicopter is called to evacuate the patient to a hospital in Anchorage. Mount McKinley, native name Denali, is the highest mountain peak in North America, with a summit elevation of 20,321 feet (6,194 m) above sea level. At some 18,000 feet (5,500 m), the base-to-peak rise is considered the largest of any mountain situated entirely above sea level. Measured by topographic prominence, it is the third most prominent peak after Mount Everest and Aconcagua. Located in the Alaska Range in the interior of the U.S. state of Alaska, McKinley is the centerpiece of Denali National Park and Preserve.

Mountaineers navigating through the Hillary Step on Mount Everest. The Hillary Step is a nearly vertical part (height around 40 ft) of upper Mount Everest. It lies almost at the top of the mountain, halfway from the "south summit" to the summit top, and is the last real challenge before the summit. It is reached by climbing the South East route. It was named after Sir Edmund Hillary, who was the first person, along with Tenzing Norgay, who passed it to reach the summit, Nepal

Mountaineers climbing up the Khumbu Icefall on the route up Everest, Everest Base Camp, Khumbu, Nepal

Mountaineers climbing up the Khumbu Icefall on the route up Everest, Everest Base Camp, Khumbu, Nepal

Mountaineers climbing up the Khumbu Icefall on the route up Everest, Everest Base Camp, Khumbu, Nepal

Mountaineers climbing up the Khumbu Icefall on the route up Everest, Everest Base Camp, Khumbu, Nepal

Runners cross a river in the hardrock 100. Billed as the toughest running race in America by many, the Hardrock 100 covers 100 miles and includes climbing a total of nearly 30,000 feet (equivilent to climbing Everest). The race begins and ends in Silverton, Colorado and climbs several 13,000 foot passes and one 14,000 foot summit.

Mountaineers climbing up the Khumbu Icefall on the route up Everest, Everest Base Camp, Khumbu, Nepal

A night scene of the Everest Base Camp, where climbers call this home for more than 2 months. They use the site as a base to move up to higher camps and also rest during days of non climbing, Nepal

Mountaineers On Mountain

Hikers backpacking on mountain, Everest, Khumbu region, Nepal, Everest, Khumbu region, Nepal