Details

The monument includes a square barrow situated on a gentle south west facing
slope towards the north eastern scarp edge of the Hackness Hills.
The barrow has an earth and stone mound which stands up to 0.3m high. It is
sub-square in plan with a side measuring 5m, oriented approximately north to
south. The profile of the mound has been rounded by forestry ploughing. The
mound was originally surrounded by a ditch up to 2m wide but this has become
infilled as a result of soil slipping from the mound and forestry ploughing
so that it is no longer visible as an earthwork feature.
The barrow lies in an area where there are many other prehistoric burial
monuments.

MAP EXTRACT
The site of the monument is shown on the attached map extract.
It includes a 5 metre boundary around the archaeological features,
considered to be essential for the monument's support and preservation.

Source: Historic England

Reasons for Scheduling

Square barrows are funerary monuments of the Middle Iron Age, most examples
dating from the period between c.500 BC and c.50 BC. The majority of these
monuments are found in the area between the River Humber and the southern
slopes of the North Yorkshire Moors but a wider distribution has also been
identified, principally through aerial photography, spreading through the
river valleys of the Midlands and south Essex. Around 200 square barrow
cemeteries have been recorded; in addition, a further 250 sites consisting of
single barrows or small groups of barrows have been identified.
Square barrows, which may be square or rectangular, were constructed as
earthen mounds surrounded by a ditch and covering one or more bodies. Slight
banks around the outer edge of the ditch have been noted in some examples. The
main burial is normally central and carefully placed in a rectangular or oval
grave pit, although burials placed on the ground surface below the mound are
also known.
A number of different types of burial have been identified, accompanied by
grave goods which vary greatly in range and type. The most elaborate include
the dismantled parts of a two-wheeled vehicle placed in the grave with the
body of the deceased.
Ploughing and intensive land use since prehistoric times have eroded and
levelled most square barrows and very few remain as upstanding monuments,
although the ditches and the grave pits, with their contents, will survive
beneath the ground surface. The different forms of burial and the variations
in the type and range of artefacts placed in the graves provide important
information on the beliefs, social organisation and material culture of these
Iron Age communities and their development over time. All examples of square
barrows which survive as upstanding earthworks, and a significant proportion
of the remainder, are considered of national importance and worthy of
protection.

The square barrow on Silpho Moor 730m south east of Breckenhurst is a rare
example of this type of barrow surviving as an upstanding earthwork, and it
will preserve a range of evidence within the flat-topped mound which does not
survive on the plough-flattened examples elsewhere. It is one of only a few to
be identified on the Hackness Hills, although there is a greater concentration
on the Tabular Hills to the south west. The Hackness square barrows form an
important group of this monument type which will provide a valuable insight
into cultural development during the Iron Age.
Despite disturbance, this barrow has surviving archaeological deposits which
will preserve information about the original form of the barrow, the burials
placed beneath it and any rituals associated with its construction and use.
Evidence for earlier land use and the contemporary environment will also
survive beneath the barrow mound and within the buried ditch.
The barrow is part of a group of six round and square barrows. The spatial and
chronological relationships between the two types of barrow are of
considerable importance for understanding the development of later prehistoric
society in eastern Yorkshire.

Source: Historic England

Sources

Books and journals
Spratt, D A , 'Prehistoric and Roman Archaeology in North East Yorkshire' in Prehistoric and Roman Archaeology of North East Yorkshire, , Vol. 87, (1993)

Source: Historic England