Noel reached the North Col and used a specially adapted camera to film the ascent of the peak.

Mallory was faulted for leading a group down from the North Col which got caught in an avalanche.

Above the North Col they climbed on unknown territory.

On May 22 they started to climb down from North Col at 6 a.m.

On May 24 they climbed to the North Col together with Noel.

They climbed from the North Col to their highest camp at a phenomenal rate of 900 vert-ft/hr.

It is not believed he attained the North Col (7000m).

In 1921, Mallory had seen a possible route from the North Col to go to the top.

The North Col on Everest, however, is still a long way from the summit.

They waited at the North Col for three awful days, watching the deserted ridge for any signs of life.