Climbing expedition leaving base camp on Mount McKinley, 6194m, Denali National Park, Alaska, United States of America, North America

Views of the Catholic church at the Chilean research base Presidente Eduardo Frei Montalva, Antarctica, Southern Ocean, Polar Regions

Views of the Chilean research base Presidente Eduardo Frei Montalva, Antarctica, Southern Ocean, Polar Regions

British Antarctic Survey (BAS) research plane landing at the Chilean Research base Frei on King George Island, Antarctica, Polar Regions

Views of the Chilean inactive research base Gonzalez Videla on Waterboat Point in Paradise Bay, Antarctica, Polar Regions

View of the Argentine base Almirante Brown, named after Guillermo Brown of the Argentine Navy, Paradise Bay, Antarctica, Polar Regions

View signpost at Base Presidente Eduardo Frei Montalva, Antarctica, Southern Ocean, Polar Regions

Views signpost and the Trinity Church at Belingshausen Russian Research Station, Antarctica, Southern Ocean, Polar Regions

Views of Base Presidente Eduardo Frei Montalva, Antarctica, Southern Ocean, Polar Regions

Views of Base Presidente Eduardo Frei Montalva, Antarctica, Southern Ocean, Polar Regions

View of the Argentine base Almirante Brown, named after Guillermo Brown of the Argentine Navy, Paradise Bay, Antarctica, Polar Regions

View of the Argentine base Almirante Brown, named after Guillermo Brown of the Argentine Navy, Paradise Bay, Antarctica, Polar Regions

View of the Argentine base Almirante Brown, named after Guillermo Brown of the Argentine Navy, Paradise Bay, Antarctica, Polar Regions

British Antarctic Survey (BAS) research plane landing at the Chilean Research base Frei on King George Island, Antarctica, Polar Regions

Leaving base camp, climbing expedition on Mount McKinley, 6194m, Denali National Park, Alaska, United States of America, North America

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

Amundsen's base, airship expedition, Ny Alesund, Svalbard, Arctic, Norway, Scandinavia, Europe

Camp Victor at Eqip Sermia on the west coast north of Ilulissat, Greenland, Polar Regions

Camp Victor at Eqip Sermia on the west coast north of Ilulissat, Greenland, Polar Regions

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

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

Female climber with crampons on a rope in lower Khumbu Icefall, 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

Base camp, Mount Ararat, Anatolia, Turkey

Two cooks for Jagged Globe Everest Expedition prepares Yak meat at Everest Base Camp while two sherpas watch

The cook for Jagged Globe Everest Expedition prepares Yak meat at Everest Base Camp

Tim Burnett and Leslie Barber resting on a flat santstone table while watching friends rock climbing on a sandstone cliff high above Lake Powell, Utah. Burnett and Barber were on a houseboat climbing expedition. The team of climbers used the houseboat as a base camp and a small speed boat to explore the many great sandstone cliffs that surround the lake.

Two climbers dig out their tent after a snowstorm covered them in 14k camp on Mount McKinley, Alaska. Climbers are advised to spare no expense on a expedition-quality tent as it can mean the difference between life and death during a ferocious storm on Denali. Extra poles and repair materials are important in case of damage caused by storms. Plan to take extra pickets, wands or deadmen for tent anchors. Never leave a tent without anchoring it securely. Tents are lost each year due to sudden gusts of wind while the tent was left unattended or drying. 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.

A mountain ranger is digging out tents after a snowstorm covered them during the night in 14k camp on Mount McKinley, Alaska. Climbers are advised to spare no expense on a expedition-quality tent as it can mean the difference between life and death during a ferocious storm on Denali. Extra poles and repair materials are important in case of damage caused by storms. Plan to take extra pickets, wands or deadmen for tent anchors. Never leave a tent without anchoring it securely. Tents are lost each year due to sudden gusts of wind while the tent was left unattended or drying. 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.

View of the summit of Pik Lenin(23,407ft., 7,134m.) from Base Camp, Atchik-Tash (11,812 ft., 3600m). The team bases out of this camp for the aclimitization process over the 3 weeks of the expedition in Kyrgyzstan.

A group of orange tents at a climbers base camp in the Himalayas region, Khumbu region, Nepal

The Marion Dufresne, stationed in Morbihan Bay in front of the Port-aux-Francais base, preparing to weigh anchor for Amsterdam Island. Kerguelen Archipelago

Team of Antarctic expeditionaries watching the landscape through the windows of the Airbus A320 carrying them from Hobart;Tasmania) to Mario Zucchelli;Italian coastal Antarctic base), as they approach the latter. These are the first summer campers. In red are those who will then take a Basler to the French coastal summer station of Cap Prud'Homme or Robert Guillard. They'll spend a few days opening it up and warming it up, before moving on to the Dumont d'Urville base;6km from Cap Prud'Homme), marking the end of wintering there. In blue: the expeditionaries bound for Concordia.