How high did Mallory's 1922 expedition reach using supplemental oxygen?
27,300 ft
28,000 ft
26,500 ft
29,000 ft
Answer
Mallory's 1922 expedition reached 27,300 feet using supplemental oxygen. This was a significant achievement, as it was the first time that climbers had reached such a high altitude with the aid of oxygen. The use of oxygen allowed Mallory and his team to climb higher and faster than they would have been able to without it.
Scaling Heights with George Mallory: The Ultimate Quiz on an English Mountaineering Legend