Sverdlovsk was a city in Russia.
By the 51st century, it had extended a hundred kilometres in every direction from its original centre. Razum Kinzhal's military operations were headquartered there at that time. (PROSE: Emotional Chemistry [+]Simon A. Forward, BBC Eighth Doctor Adventures (BBC Books, 2003).)
Behind the scenes[]
In real life, the city is named Yekaterinburg, only being known as Sverdlovsk during the Soviet era.