DescriptionJohn Work, chief trader for the Hudson’s Bay Company, mentioned both the Little Blackfoot River and the Blackfoot River by name in his journal entries for October 22 and November 4, 1831. He did not mention the origin of the names, but they most likely refer to the Blackfeet. He did mention that Americans had been heavily trapping the river ahead of him. John Mullan later traveled down this river, heading west from Little Blackfoot Pass, which later became Mullan Pass.Personal NamesWork, JohnContributing InstitutionMontana Historical Society Library and ArchivesGeolocation[1]