An expedition member hauls a custom-built ricksha laden with supplies across the desolate Chang Tang alpine steppe in northern Tibet. A group of elite mountaineers put together the expedition to witness births at the remote calving grounds of the elusive chiru, or Tibetan antelope.

The expeditioners chose to use lightweight rickshas instead of four-wheel-drive vehicles, which would get stuck in the mud and spook the chiru with engine noise.

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