Individual #Great_Plains  a vast prairie region extending from Alberta and Saskatchewan and Manitoba in Canada south through the west central United States into Texas; formerly inhabited by Native Americans
  instance of:  prairie
  part of:  North_America
  part:  dust_bowl  a region subject to dust storms; especially the central region of United States subject to dust storms in the 1930s
  part:  Llano_Estacado  a large semiarid plateau forming the southern part of the Great Plains

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