The fort here was established c. A.D. 55, during the governorship of Aulus Didius Gallus (gubernator A.D. 52-57), along with other forts at Templeborough and Doncaster (Webster ?).

References for Chesterfield

Rome Against Caratacus by Graham Webster (Batsford, London, 1993);

NGRef: SK3871 OSMap: LR119

Roman Roads near Chesterfield

N (13) to Templeborovgh (South Yorkshire) S (11) to Pentrich (Nottinghamshire)