Alexander Kellas - The Greatest Himalayan Mountaineer You May Never Have Heard Of

At the time of his death in 1921, en route to Everest, Scottish mountaineer Alexander Kellas was among the foremost Himalayan explorers, with a string of first ascents and an altitude record to his credit. As a scientist, his research into the physiological effects of high altitude broke new ground. So why are his achievements not better know...