human
Produce a detailed written description of a dangerous scene outside a wilderness cliff with a windy vortex and cliff walls.
assistant
Hemmed in by sheer cliff walls, the couloir is quite narrow, and in conjuction with the steep gradient, passage is harrowing at best. Unfortunately, the tight space is completely cast in darkness, adding unnecessary degrees of difficulty in navigation. The only sound audible in this deep mountain gash is the steady howl of rushing air from a windy vortex, punctuated by the occasional scream.