Claim: The Bailey–Morshead exploration of Tsangpo Gorge is not part of the Yarlung Tsangpo River.
Evidence: The Bailey–Morshead exploration of the Tsangpo Gorge was an unauthorised expedition by Frederick Bailey and Henry Morshead in 1913 which for the first time established the definite route by which the Tsangpo River reaches the sea from north of Himalaya, through the Tsangpo Gorge.