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Life on the mountain: Camp IV
By Andree Lau, CBC News Online

"A barren plateau of bulletproof ice and windswept boulders, the (South) Col sits at 26,000 feet above sea level, tucked between the upper ramparts of Lhotse, the world's fourth-highest mountain, and Everest.... It is one of the coldest, most inhospitable places I have ever been."
- Jon Krakauer, Into Thin Air

It's a desolate field where the temperature and a lack of moisture preserve things forever. Bodies of dead climbers are frozen in time. Faded, tattered tents flap endlessly in the constant wind. Spent oxygen bottles of all colours litter the ground. Forty years of expeditions have left it as the "world's highest garbage dump." This is Camp IV, the final stop before the push to the top of the world. It's also the most dangerous stop.

South Col

At 8,000 m (26,300 ft), climbers are now in the "Death Zone," an altitude where human bodies begin to deteriorate from a lack of oxygen. The body loses all ability to acclimatize. Bodily functions such as digestion shut down. Wounds do not heal. The longer someone stays here, the more likely they'll be struck by illness or not make it down the mountain alive.

The bodies of those who have died trying to get to the top are occasionally buried in tents here. Other corpses are left exposed on the mountain.

"Up ahead the route steepened as it climbed the Geneva Spur and I remember saying that I sure would not like to fall here, as it would be next to impossible to stop yourself."
- Byron Smith, 1998 Diaries

The hike from Camp III to IV can take as little as five hours. The route goes across the Lhotse Face's Yellow Band of rock. It's the first rock a climber touches on the way to the summit of Everest. Scratches and imprints from other climbers' crampons are visible on the exposed stretch of limestone. Climbers use 100 m of rope to cross the Band onto the Geneva Spur, a rocky ridge that leads right into the South Col where Camp IV is located.

The camp is bordered by a 2,100-m (7,000-ft) drop-off known as the Kangshung Face on the east and the 1,200-m (4,000-ft) Lhotse Face on the west. The barren Col is about four football fields long and two fields across. There is no shelter.

"The wind was also howling through this high Col (saddle) that separated Mount Everest and Lhotse with tremendous force letting you know that now was not the time to let down your guard. As people were setting up their tents one was ripped from a climber's hands and went flying across the Col."
- Byron Smith, 1998 Diaries

The freezing wind never stops. If the jet stream is over the top of the mountain, winds can reach over 160 kilometres (100 miles) per hour. It sounds like the constant take-off of 747s. Tents are weighed down with empty oxygen bottles and rocks, but that doesn't keep them from shaking violently in the wind. The weather at this level makes frostbite likely and altitude sickness more serious.

"Bottled oxygen does not make the top of Everest feel like sea level. Ascending above the South Summit with my regulator delivering two liters of oxygen per minute, I had to stop and draw three or four heaving lungfuls of air after each ponderous step."
- Jon Krakauer, Into Thin Air

The air pressure at Camp IV is one-third of that at sea level. Climbers battle hypoxia -- where the brain is starved of oxygen -- and struggle with the most basic tasks. Tying a shoelace or getting rid of body wastes become monumental tasks requiring intense concentration. The thin air slows every movement and every thought.

Byron at the South Col
The top of the world is 1.62 km (1 mile) away.

Most climbers rely on tanks of supplemental oxygen by Camp III. At Camp IV, it's critical. A regulator controls the flow of oxygen, which comes at about two to three litres per minute. Climbers sleep with their oxygen masks on. It helps keep their outer extremities warm and their minds clearer.

On a smooth summit bid a climber could consume up to three tanks of oxygen ascending to the top and climbing back to Camp IV. On the descent, climbers may use an additional two bottles of oxygen for sleeping on the South Col. On Byron's ascent, each team member will have the standard three tanks -- two in their backpacks and a third stashed just below the summit. The team plans to climb down as far as Camp II after summitting, but they are prepared to stop and sleep at Camp IV if necessary.

"Everyone retreated to their nylon domes the moment they reached the Col and did their best to nap, but the machine-gun rattle of the flapping tents and the anxiety over what was to come made sleep out of the question for most of us."
- Jon Krakauer, Into Thin Air

On the way up, teams stop at Camp IV only long enough to rest for the final summit climb. They have only a few hours for final preparations. They must focus on resting, packing their ropes and equipment, and re-hydrating themselves. Sherpas make hot water and soups for the climbers, but nerves and sheer exhaustion often makes it difficult to eat. Extraordinary physical stamina and mental concentration have already been exerted to get this far. Much more is needed to get to the top.

"Above the comforts of Base Camp, the expedition in fact became an almost Calvinistic undertaking. The ratio of misery to pleasure was greater by an order of magnitude than any other mountain I'd been on; I quickly came to understand that climbing Everest was primarily about enduring pain. And in subjecting ourselves to week after week of toil, tedium, and suffering, it struck me that most of us were probably seeking above all else, something like a state of grace."
- Jon Krakauer, Into Thin Air

Byron and his team plan to leave for the summit at 10:30 p.m., 10 hours after arriving at Camp IV. They leave at night because the winds are calmer and it is better to descend during daylight hours. You do not want to spend a night on the summit. On the way back, the climbers will stop on the South Col to be greeted by the Sherpas who have stayed behind with supplies and with hot tea for returning summitters. Byron and the team will not stay here to sleep unless they can't make it safely down to Camp II. They plan to bypass Camp III, on the dangerous Lhotse Face, completely.

Questions Kids Ask
On your 1998 climb why weren't you able to reuse the rope that got you to the South Summit to finish the climb?
Answer:The rope we use on Everest is called fixed rope. That is, we do not walk with it looped around our shoulders and passed through our harness from one climber to another as you normally would in glacier travel.

Everybody is on their own, independant, and each person clips into rope which is "fixed" by ice screws and ice pickets to the mountain. Once the rope is fixed it cannot be easily removed. More ...

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 Byron's '98 Climb Diaries
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