Fo ravine
     
  Fo ravine is not deep but has steep feature. The jungles mixed with birch seem a bit sparse; the towering solemn rocks seem a bit more. The most famous cliff called the immortal bridge which half of the cliff is protrudent on the top of the mountain. According to legend, in ancient times a immortal plan to build a bridge to connect the mountains in west and north for the convenience of cultivate himself. Unexpectedly the heaven will not allow this, because the real cultivation has no short cut, building the bridge is a speculative action. Thus stone bridge was not built, but left the immortal bridge for people recalling and thinking.
     
 
     
 
 
   
 
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