Illuminated tent at Plaza de Mulas base camp, Aconcagua 6962m, highest peak in South America, Aconcagua Provincial Park, Andes mountains, Argentina, South America

View from Aconcagua 6962m, highest peak in South America, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Climber nearing the summit of Aconcagua 6962m, highest peak in South America, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Aconcagua, at 6961m, the highest mountain in the Andes Mountain Range, Aconcagua Provincial Park, Mendoza Province, Argentina, South America

Illuminated tent at White Rocks campsite, Piedras Blancas, 6200m, Aconcagua 6962m, highest peak in South America, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Cloud blowing off the summit of Aconcagua 6962m, highest peak in South America, Aconcagua Provincial Park,Andes mountains, Argentina, South America

Trekking in Aconcagua Provincial Park with 6961m peak of Aconcagua behind, Andes, Mendoza Province, Argentina, South America

Aconcagua Park, highest mountain in South America, Argentina, South America

Aconcagua Park, highest mountain in South America, Argentina, South America

Climber ice climbing on glacier near Plaza de Mulas basecamp, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Vew from Aconcagua 6962m, highest peak in South America, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Aconcagua Mountain, Horcones Valley, Aconcagua Provincial Park, Central Andes, Mendoza Province, Argentina, South America

Looking out of a tent at White Rocks campsite, Piedras Blancas, 6200m, Aconcagua 6962m, highest peak in South America, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Tent at Plaza de Mulas base camp, Aconcagua 6962m, highest peak in the western hemisphere, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Aconcagua Mountain and Horcones River, Aconcagua Provincial Park, Central Andes, Mendoza Province, Argentina, South America

Climber nearing the summit of Aconcagua 6962m, highest peak in South America, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Glacier near Plaza de Mulas basecamp, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Tent at Plaza de Mulas base camp, Aconcagua 6962m, highest peak in the western hemisphere, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Sunrise, Aconcagua 6962m, highest peak in South America, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Sunset at White Rocks (Piedras Blancas) campsite at 6200m, Aconcagua 6962m, highest peak in South America, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Hiker under the Argentinian flag looking up at the summit of Aconcagua 6962m, highest peak in South America, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Hut at camp Berlin at 6000m, Aconcagua 6962m, highest peak in South America, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Woman wakes up at Confluencia Base Camp in Aconcagua National Park, Argentina, South America

Glacier near Plaza de Mulas basecamp, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Glacier near Plaza de Mulas basecamp, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Full moon at sunrise and shadow of Aconcagua 6962m, highest peak in South America, Aconcagua Provincial Park, Andes mountains, Argentina, South America

Hiker looking down to base camp, Plaza de Mulas, Aconcagua Provincial Park, Andes mountains, Argentina, South America

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.

Panoramic view of road in Andes Mountains, Aconcagua Provincial Park, Mendoza, Argentina