Castra Exploratorum
Castra Exploratorum in Britain, mentioned in the second Itinerary as being the first station between the Vallum and Rutupium, distant 12 miles from Blatum Bulgium, and 12 from Luguvallum (Carlisle). Netherby best meets these conditions.
From William Smith (ed.), Dictionary of Greek and Roman Geography. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.