The location of the county hall has usually denoted the county town, and as county halls have moved it has also been considered that the county town has moved, for example when Derbyshire County Council moved from Derby to Matlock in the 1950s.
The location of the county hall has usually denoted the county town. The county town has moved. This was what it has also been considered. This was for example. Derbyshire County Council moved from Derby to Matlock in the 1950s. County halls have moved.