Details

The monument includes a round barrow cemetery, a linear group of five barrows,
aligned north west-south east along the north east facing side of a shallow
coomb. The barrows are part of a wider group of at least eight which straddles
the coomb to the south of Hampshire Gap.
Four of the barrows survive as recognisable earthworks. Of these the largest,
most north westerly example is a bowl barrow which has a mound 28m in
diameter, the perimeter of which survives to a maximum height of 0.7m. In the
centre of the mound is an irregular depression, c.17m in diameter which, in
its deepest part is c.1m below the surrounding ground level. Around the mound
is a ditch 2.5m wide and 0.3m deep.
To its south west lie three further barrows:
The first has a mound 22m in diameter and 0.7m high on which there are five
discrete areas of comparatively shallow disturbance. Prior to disturbance this
barrow was recorded as being a further example of a saucer barrow with an
overall diameter of 33m. Although no longer visible on the surface, the ditch
will survive as a buried feature c.2.5m wide.
The second is a bowl barrow which has a mound 20m in diameter and 0.4m high
surrounded by a shallow ditch 2.5m wide.
The third, and most south easterly example, is a bowl barrow which has a mound
22m in diameter and 0.6m high. Traces of the ditch can be seen in places but
for the majority of its circuit it will survive as a buried feature c.2.5m
wide.
Immediately north of the largest barrow lies the site of a saucer barrow,
which, prior to being levelled by cultivation, was recorded as being 30m in
diameter and as having a ditch surrounding its mound.
This group of barrows was possibly partly excavated by William Cunnington in
the early 19th century.
Excluded from the scheduling are all fence and gate posts and archaeological
site markers although the ground beneath them is included.

MAP EXTRACT
The site of the monument is shown on the attached map extract.
It includes a 2 metre boundary around the archaeological features,
considered to be essential for the monument's support and preservation.

Source: Historic England

Reasons for Scheduling

Since 1916 the Porton Down Range has been used for military purposes. As on
the Salisbury Plain Training Area, this has meant that much of it has not been
subject to the intensive arable farming seen elsewhere on the Wessex chalk.
Porton, as a result, is one of very few surviving areas of uncultivated chalk
downland in England and contains a range of well preserved archaeological
sites, many of Neolithic or Bronze Age date. These include long and round
barrows, flint mines, and evidence for settlement, land division and
agriculture.
Round barrow cemeteries date to the Bronze Age (2000-700 BC). They comprise
closely spaced groups of up to 30 round barrows - rubble or earthen mounds
covering single or multiple burials. Most cemeteries developed over a
considerable period of time, often many centuries, and in some cases acted as
a focus for burials as late as the early medieval period. They exhibit
considerable diversity of burial rite, plan and form, frequently including
several different types of round barrow and occasionally associated with
earlier long barrows. Where investigation beyond the round barrows has
occurred, contemporary or later `flat' burials between the mounds have often
been revealed. Round barrow cemeteries occur across most of lowland England
with a marked concentration in Wessex. In some cases they are clustered around
other important contemporary monuments. Often occupying prominent positions,
they are a major historic element of the modern landscape, while their
diversity and their longevity as a monument type provide important information
on the variety of beliefs and social organisation amongst early prehistoric
communities.
The round barrow cemetery 250m east of Straight Walk Plantation, although not
within Porton Down's area of uncultivated downland, is a comparatively well
preserved example of its class. Despite some erosion caused by cultivation
and antiquarian excavation, the majority of the constituent barrows still
exhibit a largely original profile and will contain archaeological remains
providing information about Bronze Age beliefs, economy and environment.

Source: Historic England

Sources

Books and journals
Colt Hoare, R, The Ancient History of Wiltshire: Volume I, (1812), 216
Colt Hoare, R, The Ancient History of Wiltshire: Volume I, (1812), 216
Colt Hoare, R, The Ancient History of Wiltshire: Volume I, (1812), 216
Colt Hoare, R, The Ancient History of Wiltshire: Volume I, (1812), 216
Crawford, O G S, Keiller, A, Wessex from the Air, (1924), 193-5
Grinsell, L V, The Victoria History of the County of Wiltshire, (1957), 184
Other
Crawford, O G S and Keiller, A, Wessex from the Air, (1928)

Source: Historic England