Along with a number of other ships of her class, as she became obsolete as a cruiser she was converted at Chatham Dockyard into a minelayer. This work was completed by August 1907. She was then based at Dover and Sheerness. In 1917 she was in use as a depot ship in the White Sea as part of the British North Russia Squadron.Ship's Log, The National Archives (TNA), 7 August 1916, ADM 53/44936
