NGRef: SH7138
OSMap: LR124
Type: Practice Work, Industry

Roads
None identified

N.G.REF DIMENSIONS AREA DESCRIPTION
SH717383 c.100 x 100 ft
(c.30 x 30 m)
c.¼ acre
(c.0.22 ha)
First reported in 1965, this Roman earthwork is situated beside a slate quarry less than ¾-mile east-south-east of the fort at Tomen-y-Mur. The small platform created by Roman troops on training exercise(s) is still visible as a raised earthwork, and was equipped with inwardly-curving clavicula defences at each of its centrally-placed 'gateways'; these elaborate defensive earthworks leave little space in the interior which could be occupied, and have led to the site being classified as a 'military practice work'.
See: Air Reconnaissance in Britain, 1961-1964 by J.K. St. Joseph in J.R.S. lv (1965) p.86;
Air Reconnaissance in Britain, 1965-1968 by J.K. St. Joseph in J.R.S. lix (1969) pp.126/7 & fig.11;