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stonehenge - English Heritage

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015-046 section 1.qxd 6/21/05 4:15 PM Page 14<br />

experienced and how people engaged with it (see Tilley<br />

1994). Following these ideas a team based at Birmingham<br />

University has developed an interactive CD-ROM-based<br />

visualization of the landscape around Stonehenge allowing<br />

journeys through real and imagined worlds (Exon et al. 2001).<br />

FINDING THE ARCHAEOLOGY OF<br />

THE STONEHENGE LANDSCAPE<br />

The investigations and studies carried out to date allow a<br />

general overview of the achievement and potential of a<br />

range of archaeological techniques and major sources which<br />

can be expected to help find out about the archaeology of<br />

the Stonehenge Landscape in future. These are reviewed in<br />

the following sub-sections, starting with non-interventional<br />

approaches. Statistics about the number and extent of<br />

surveys and interventions are taken from the Stonehenge<br />

Landscape GIS (see below).<br />

Ground-based geophysical surveys<br />

Contributed by Andrew David<br />

In recent years, geophysical survey has played a major role in<br />

mapping and unravelling the archaeology of the Stonehenge<br />

Landscape. The applications of geophysical survey in the WHS<br />

were reviewed in 1996 (David and Payne 1997) and a number<br />

of specific recommendations and targets for future work were<br />

proposed (David and Payne 1997, 107–10). That review, and its<br />

proposals, remain substantially unchanged at the present time<br />

of writing and should be a starting point for consideration of<br />

geophysical applications to archaeological research in the<br />

WHS. In the light of experience in the Stonehenge area, the<br />

opportunity is taken here to provide a brief critical overview<br />

together with a much-abbreviated assessment of the further<br />

contributions that these methods can add to a better<br />

understanding of this landscape and its monuments.<br />

At current reckoning, the total area surveyed using<br />

geophysical prospective methods up until 2001 within the<br />

Stonehenge Landscape amounts to 3.1602 square kilometres,<br />

about 2 per cent of the total area (Map B). Of this, 0.6891<br />

square kilometres of surveyed ground lie outside the World<br />

<strong>Heritage</strong> Site, 2.4710 square kilometres inside. This is mostly<br />

magnetometer survey, a substantial proportion of which has<br />

been commissioned as part of the evaluation of the several<br />

options for visitor centres and road corridors. Magnetometer<br />

survey has been the technique of choice, not only because it is<br />

relatively rapid and hence cost-effective, but also because it is<br />

particularly responsive, with proven efficacy for the detection<br />

of features such as pits and ditches on chalkland geology<br />

(Illustration 10). This reputation has been vindicated many<br />

times in the Stonehenge area where, for instance, the Greater<br />

and Lesser Cursus, Coneybury henge, and the interior of<br />

Durrington Walls have all produced distinct magnetic<br />

signatures. At Durrington Walls, no fewer than four new<br />

enclosures and an abundance of pits have been found within<br />

the earthwork enclosure. At Coneybury it was a magnetometer<br />

survey that located the remarkable early Neolithic pit, now<br />

familiarly known in the literature as ‘The Anomaly’.<br />

Earth resistance survey, which is a more time-consuming<br />

method and at the mercy of seasonal variation in soil<br />

moisture, has been applied very sparingly and only on<br />

specific monuments, such as Stonehenge itself, where its<br />

ability to locate pits, ditches, and remnant bank material<br />

was apparent. The method has an advantage over<br />

magnetometry on account of its superior ability to locate<br />

buried megaliths and megalith settings, which is best<br />

Illustration 10<br />

Plot of the results from a<br />

geophysical survey of the<br />

Lesser Cursus in 1993.<br />

[Survey by Alastair Bartlett<br />

for <strong>English</strong> <strong>Heritage</strong>.]<br />

14

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