Approximated extent of Brierley deer park according to Harrison & Watson 2006 [accessed 13/11/07]. A grant of free warren is recorded for 1280 (Hunter 1831, 402) but it is uncertain if this the date of the establishment of the park. The deer park was certainly established by 1424 when Sir William Harryngton owned the manor of Brierley. At this time the scheduled moated site (Scheduled Ancient Monument 13233), Hall Steads, was operating as the manor house. The deer park was extended in the 16th century. (Harrison & Watson 2006). The park is marked on Speede's 1610 map but is not marked on Jefferys 1775 map. There has been some boundary loss in this area in the late 20th century, mostly removing fairly regular field boundaries and retaining some sinuous boundaries suggestive of assarted woodland. This may indicate the park never fully removed earlier agricultural boundaries. There are numerous Iron Age/Roman field systems visible as crop marks. There is partial legibility of a phase of assarted woodland. There is also legibility of the park in the surviving bank north of West Haigh Wood.