#wagon_train__wagontrain__caravan  a procession (of wagons or mules or camels) traveling together in single file; "we were part of a caravan of almost a thousand camels"; "they joined the wagon train for safety"
  supertype:  procession  a collection of things moving ahead in an orderly manner
  member:  covered_wagon__coveredwagon__Conestoga_wagon__Conestoga__prairie_wagon__prairiewagon__prairie_schooner__prairieschooner  a large wagon with broad wheels and an arched canvas top; used by the United States pioneers to cross the prairies in the 19th century

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