The Eastern Edge of the Valley                         NW     N      - 
(-------------------------------------------------)     W <---(M)---> -
                                                        SW     S      -

You are standing upon the eastern edge of a large snow covered valley. 
You raise your hand to protect your face from the swirling snow and sleet
which obscures your vision more than a few yards in any direction.  The
ankle deep snow makes travel slow and hazardous.  
A large humanoid with pale blue eyes and long white fur emerges from the blinding snow in front of you.
A mummified Son of Kyuss putrifies the area with its presence.
A yeti begins attacking you!
A yeti is in perfect health.