Excavation
Date 1990
Event ID 606253
Category Recording
Type Excavation
Permalink http://canmore.org.uk/event/606253
Excavation was undertaken to test hypotheses relating to the date and function of cropmark pit circles and to what extent could these different functions be detected in morphological differences visible on aerial photographs.
RCAHMS aerial photographs, dating from 1977, revealed traces of three pit circles in a field on Den Farm, in which a cist had been found in 1868 (NJ36SE 4). One circle was significantly larger than the others, with a scatter of other large pits around and within it. It was chosen for excavation. An area measuring a maximum of 25m by 23m stripped. Over 300 separate features (mainly postholes) were noted and planned. A sample of about 33 features was half sectioned to determine the nature of types of features and to establish important relationships between feature groups.
Cleaning and planning revealed a number of groupings of features:
1. Post circle A - a ring probably of 14 large postholes measuring 8.5m in diameter, with posts about 1.8m apart.
2. Post circle B - a ring probably of 14 large postholes, 8.5m in diameter, with posts about 1.65m apart. Elements of this ring had been burnt in situ.
3. Post circle C - a ring of 16 large postholes, 11.5m in diameter, with posts about 2.25m to 2.5m apart.
Excavation showed that the pits of post circle A had been cut by those of post circle B, which in turn had been cut by those of post circle C. 4. Post circle D - an arc of a possible fourth ring of posts; 6 postholes of this possible group were visible at the N edge of the site. The ring would have been about 9m in diameter.
5. An arc of 11 small postholes, possibly part of a ring of very different character from A-D.
6. The possible fences - a prominent feature of the site was a distinct line of posts running from the SW baulk for 3m terminating at a post. The fence resumed on the other side of a possible gate 11m across. Another possible fence was visible as a continuous narrow strip running across rings A, B and C.
7. Two ill-defined hollows. One emerged from the NW. The fill of the other obscured postholes of rings A, B and C. It contained an area of paving, perhaps a survival in the slight hollow of more extensive paving. The hollow had a distinct resemblance of excavated ring ditch houses.
The only finds recovered were flint tools and flakes, fragments of burnt bone, two whetstones, a fragment of a rubbing stone, and tiny pieces of glassy slag.
Sponsor: Historic Scotland. (For plan: see fig 10k).
GJ Barclay and M Tolan 1990.
