Sònraichte Project – Archaeology assemblages from stack sites: Dunasbroc

The first archaeology assemblage that I worked on came from a series of stack sites around Lewis. The STAC project: the Severe Terrain Archaeological Campaign – focused on investigating stack sites of the Isle of Lewis 2003–2005.

The site

The project involved a series of surveys and excavation on many stack sites. Still, only some of them produced the objects that we keep today at the museum. So I want to focus on one of them: the excavation at Dunasbroc.

Dunasbroc is near Aird Dell in the township of South Dell, parish of Barvas, on the west coast of Ness. It is a  small,  steep-sided,  conical stack situated close to shore and linked to it via a  low rock ramp.  A large number of artefacts recovered indicates there was extensive activity on the site. The material recovered from under the peat covered the Neolithic to the Norse period.

The finds and what can they tell us about the past

The archaeology assemblage comprises three main types of finds: pottery, stone, and animal bones.

The faunal remains

This very small and fragmented assemblage consisted only of bones from cattle and sheep/goat bones. Most bones were calcined, pointing to the exposure to high temperatures (around 650C), a clear sign of human activity. The activities could have been either food preparation or a sign of rubbish disposal! But what it’s unavoidable, it’s that it confirms the pastoral activity practised in the surrounding areas of Dunasbroc.

The lithics and stone artefacts

The lithics found at Dunasbroc are mainly quartz and flint. Flint is available in small quantities on the local beaches. However, it may have come from imported pebbles, like the orange example in the photos below. The quartz is a more readily available resource from beach pebbles and veins on the Lewisian gneiss, found around most of the island!

The significant aspect of the assemblage is that fractures are relatively fresh, indicating a local stone tool production close to Dunasbroc. Unfortunately, no flint or quartz debitage was recovered, so this may indicate tool production elsewhere.

The lithic artefacts date from the Late Neolithic, although leaf-shaped arrowheads are represented throughout the Neolithic period.  The arrowhead that we have on display in MnE is quite elaborate in nature (it was not an everyday tool but had additional importance) and is likely to have been deposited in a significant location.

There’s also a possible scraper (Fig. 1). This primitive technology consisted of working a flint core to produce flakes that are then retouched to give a sharp edge to the scraper. These tools are one of the most common tools  found in Prehistory and were used to clean animal hides.

The remaining stone assemblage consisted of larger pebbles. Some of them used as hammer tools to work on the lithics, and some others used as rubbers. The pecking damages on the sides of the pebbles show the hammering action. In contrast, the polished surface reflects a rubbing motion.

Fig 1.  2008.15.184.  Possible scraper. Regular flint flake. Patinated. Grey. Prominent ripples, retouch along all lhs, edge damage same place. 33 (L) x 28 (W) x 10 (B) mm

The pottery assemblage

Pottery is generally the most prominent type of artefact recovered from an excavation; at Dunasbroc, more than 400 fragments dating to the Late Neolithic.  A smaller selection of Iron Age pottery examples was also recovered from the site.

The examples of Neolithic pottery are known as Hebridean Ware. This type of pottery is decorated with oblique, parallel grooves arranging in opposing directions. Some examples are also undecorated and burnished. This pottery type is also characterised by its shape. It has a round-based profile, out-turned rims, and horizontal carination or incised lines dividing the vessel.

One vessel (Fig. 2) has a bevelled rim decorated with oblique grooves, followed by grooves on the neck, later carination dividing the vessel, then more oblique incised lines as decoration. The fabric is coarse and sandy clay and grey and brown in colour.

Another vessel (Fig. 3) has more incised lines decoration. The fabric is also coarse sandy clay and grey coloured. Another example (Fig. 4) shows a bevelled rim decorated with oblique grooves. The exterior is decorated with more grooves arranged in alternated vertical and horizontal panels. The fabric is coarse again, sandy clay, grey and brown.

Fig 2.  2008.15.69.  Hebridean incised ware.
Fig 3.  2008.15.70.  Hebridean incised ware
Fig 2.  2008.15.71.  Hebridean incised ware.

In Summary, the small assemblage of Dunasbroc gives us more insight into our Neolithic past. It allows us to try and interpret the activities of the people that lived and worked on these Islands (so long ago).

The ‘Sònraichte’ Project is funded by Museums Galleries Scotland.

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