Measuring roughly 5.6 metres north to south and 5.4 metres east to west, it sits on the western bank of the stream and is the kind of feature that only becomes legible once you know what you are looking at.

The spread is understood to result from land reclamation, a process that historically involved burning off vegetation, and sometimes more, to bring rough or boggy ground into agricultural use. What makes this particular patch more than an isolated curiosity is the presence of a second burnt spread of similar character roughly 90 metres to the south-east, suggesting that whatever activity took place here was not a single event but part of a broader pattern of working this marginal, rush-covered ground. Whether these spreads relate to prehistoric activity, early modern farming, or something in between is not recorded, but their proximity to one another and to the stream gives the site a quiet coherence.