Snowstruck: In the Grip of Avalanches

Every year around the globe, people cross paths with avalanches-some massive, some no deeper than a pizza box-often with deadly results. Avalanche expert Jill Fredston stalks these so-called freaks of nature, forecasting where and when they will strike, deliberately triggering them with explosives, teaching potential victims how to stay alive, and leading rescue efforts when tragedy strikes.

Having spent decades trying to keep avalanches and people apart, Fredston brings them together unf...