Individual #Cumberland_Mountains__Cumberland_Plateau  the southwestern part of the Appalachians
  part:  #Cumberland_Gap
  part of:  #Appalachians
  type:  #range_of_mountains__range__mountain_range__chain__mountain_chain__chain_of_mountains  a series of hills or mountains; "the valley was between two ranges of hills"; "the plains lay just beyond the mountain range"

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