The Roman Map of Britain Brocolitia Carrawburgh, Northumberland

Brocoliti (R&C 148) next
Tribunus cohortis primae Batavorum, Procolitia (ND xl₃₉)

Brocolitia strongly resembles the stream name Brockhole common to the region. Presumably the eponymous stream is that which meets the South Tyne at Newbrough,  Maggie's Dean Burn. Other place-names that may be related are Brockhall, Brockholes, Brocklesby and Brockley, though Ekwall derives them differently.

Carrawburgh NY8571

CARRAWBURGH ROMAN FORT & HADRIAN'S WALL & VALLUM BETWEEN THE FIELD BOUNDARY EAST OF THE FORT & THE FIELD BOUNDARY WEST OF COVENTINA'S WELL IN WALL MILE 31
NATIONAL MONUMENT NO: 26054