Mountain polo players take part in a practice match at Chitral Polo Field in northwestern Pakistan. This game, arguably Pakistan's favorite sport, differs dramatically from the European version. In mountain polo, six players instead of four compete on a longer, narrower field. And the near absence of rules encourages a rowdy, fast-paced, frequently violent clash.

(Photograph shot on assignment for, but not published in, the National Geographic book Mountain Worlds, 1988)