 The locomotives only worked up as fas as Iron Bridge; horses were used for the final section in St Austell on grounds of public safety.The horses were brought up from Pentewan on the first train of the day; locomotive operation into St Austell was permitted in later years.A strike in 1913 reduced earnings and the outbreak of war in 1914 took many men away from the china clay industry; the reduced output was increasingly diverted away from Pentewan which suffered from limitations of primitive handling methods and difficult navigational access, and the last china clay was carried on 29 January 1918; the last actual train ran on 2 March 1918.