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Harrow Hill: a Neolithic flint mine today

Neolithic flint mines are the earliest industrial monuments in Britain. First dug into the chalk from around 4000 BC, these shafts were cut in order to extract seams of flint.

They represent a major achievement for prehistoric people using tools made of only bone and stone. The first flint mines were on the South Downs of West Sussex and, although a number have been archaeologically examined, few of the results had previously been published – hence the establishment of this project, now placing the results at the forefront of prehistoric research.

Flint

Harrow Hill: a Neolithic flint mine being archaeologically excavated in 1925

Before the introduction of metal technology, the majority of tools – like knives, saws and arrowheads – were made from flint. Flint is a stone which in hardness and durability is second only to diamond. It possesses excellent flaking properties and can be chipped into a variety of shapes, sizes and implement types.

It occurs naturally within the chalk and may be found just under the surface as nodules, or deep underground as horizontal seams. Mining for flint began in the Early Neolithic, around 4000 BC, many extraction pits surviving today as large, crater-like hollows.

Over 70 sites have been identified as possible Neolithic flint mines in Britain, the densest group, comprising Blackpatch, Church Hill, Cissbury, Harrow Hill, Long Down, Nore Down, Stoke Down and Tolmere, being in West Sussex.

Cissbury: a Neolithic flint mine being investigated in 1875 and recorded in this very early archaeological photograph

History of investigation

The characteristic surface hollows of partially backfilled flint mines were not fully understood by the first archaeologists, who believed they were a curious type of settlement or ‘holy place’. It wasn’t until the late 1860s that excavation indicated that these pits had been dug to extract flint.

In the early 1920s, amateur archaeologist John Pull noticed a series of craters upon Blackpatch Hill, to the north of Worthing. Between 1922 and 1932, Pull supervised the complete excavation of a nine mine shafts, four flint working areas, 11 round mounds and associated features at Blackpatch.

Blackpatch: shaft 1 being examined in 1922

Inspired by his work, the examined further mines on nearby Harrow Hill in 1924, directed by Elliot and Elliot Cecil Curwen, and in 1936, led by George Holleyman. After finishing at Blackpatch, Pull moved on to investigate the flint mines of Church Hill (1932–39 and 1945–49) and then Cissbury (1952-56).

Cissbury: Shaft 27 being excavated in 1953 (John Pull is on the right)

Sadly, although extensive records were made, John Pull died before a final set of reports could be published, leaving the flint mines in a form of archaeological ‘limbo’.

New research

Using the original excavation notebooks, plans, photographs and finds, all curated by , the nature of the Neolithic flint mines is slowly being revealed, whilst new survey and investigation is demonstrating the full extent and significance of the mining zone.

One of the more intriguing of discoveries made by the excavation team was a series of animal figures (mostly deer and cattle) carved into the shaft walls by the prehistoric miners. Together, these represent some of the earliest examples of art so far recorded from the British Isles. Substantial reports have now been published but the work is on-going and more discoveries no doubt await.