Can medical science forecast why some people get sick climbing at high altitude while others don't?
Read accounts of the Spring 2000 expedition sent in from the field.
Explore the demanding route from base camp to the 20,320-foot summit.
What are the basic skills anyone heading into the mountains should have?
See how extreme cold can damage the human body.
In this audio feature, Dr. Peter Hackett discusses the effects of high altitude on the body.
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Denali For Kids
In this kids-eye view of Mt. McKinley, find out what the NOVA team ate for dinner, see what high altitude can do to your body, and more.
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