Hi Chris!

Welcome to TMA. This site - TMA's "Norbury Camp 1" - is described in the Royal Commission's English county survey for Gloucestershire, 1976 (Iron Age and Romano-British Monuments volume), in the parish entry for Northleach with Eastington:

"Norbury Camp (SP 127155), univallate hill-fort, unexcavated, encloses 80 acres on a promontory between re-entrant valleys, 1 mile NE of Northleach. The W and E sides of the fort are defined by banks set along the extremities of a slight eminence; the N and S sides are defined by the edges of the promontory, accentuated in part at least by scarping. On the N, a low bank set on a terrace beneath the scarp edge and extending for about 220ft along the inner side of a track may be the northern 'mound' mentioned by Witts.* The ploughed W bank, 50ft wide, rises 1.5ft above the interior and contains limestone blocks up to 3ft long; the ditch shows only as a crop-mark. The E bank, about 16ft wide and 2ft high, ends 200ft S of the steeply scarped NE corner; no ditch is visible. Original entrances, used by modern roads, may be represented by a gap near the centre of the E bank and by a hollow-way in the S scarp."

There are a few b&w diagrams of this and adjacent monuments in the book which I can scan & email if you like. Gimme your email details and I'll gerrem to you.

* This reference is to G.B. Witts', "Archaeological Handbook to the County of Gloucestershire," Cheltenham n.d. (c.1883)