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  THE 
  NATIONAL 
  GEOGRAPHIC 
  MAGAZINE 
  

  

  IN 
  SOME 
  CASKS 
  THE) 
  HILLSIDES 
  SLID 
  AWAY, 
  LEAVING 
  GASHES 
  THROUGH 
  THE 
  TERRACED 
  

   FIELDS 
  AS 
  REGULAR 
  AS 
  IE 
  SCOOPED 
  OUT 
  BY 
  A 
  GIGANTIC 
  TROWEL 
  

  

  A 
  MOUNTAIN 
  STREAM 
  DAMMED 
  UP 
  BY 
  A 
  LANDSLIDE 
  OUT 
  OE 
  THE 
  HILLS 
  

  

  Excavators 
  are 
  seen 
  in 
  the 
  background 
  working 
  to 
  release 
  the 
  waters 
  which 
  have 
  formed 
  a 
  

   lake. 
  The 
  water 
  is 
  likely 
  to 
  break 
  through 
  the 
  loess 
  at 
  unexpected 
  places 
  and 
  times. 
  

  

  