Published March 4, 2010 12:00AM

Throwing Prayers
in 1934 Mao Zedong and 86,000 Red Army troops attempted one of history’s most brutal high-country crossings. About 10,000 made it through. Writer Dean King and photographer Philipp Engelhorn followed in their footsteps, and as you can see from these photos, found a trekker’s paradise along the way.