The first of a number of walks looking at a number of rock outcrops that might be a potential source for the stones found at Stanton Drew. NGRs have been plotted using a hand-held Garmin etrex GPS - accuracy +/- 6 metres.
The weather was rather overcast, windy with frequent cold showers becoming brighter with sunny spells later.
Field boundary, West Harptree ST 56326/56365 to ST 56265/56396
There is an exposed outcrop of Dolomitic Conglomerate (partly silicified) that forms part of the field boundary, this includes a number of large boulders. The boulder in the image above is approx. 4m x 1m x 1.5m. Any walk around the fields and lanes in the Harptree's area will reveal a large number of silicified rocks along the boundaries.
Boulder fields, Garrow ST 55598/55468
At Garrow there are several fields that have exposed boulders of silicified Dolomitic Conglomerate. There appears to be a significant number of boulders sub-surface, there are lumps and bumps all over the area with some small exposures of rock. The silicification is variable and some boulders have a high quartz content. A number of the rocks are lichen covered.
The combe at Garrow Bottom ST 55050/54947
All the way up Garrow Bottom, on both sides of the combe, are exposed outcrops of variably cilicified Dolomitic Conglomerate, particularly on the southeast side. These outcrops include some massive blocks, the vast majority of which have a substantial covering of moss.
Garrowpipe Spring ST 54862/54878
In this location is a super exposed cliff face of Dolomitic Conglomerate with some massive block breakdown, some of these blocks are about 6m x 6m x 5m. From under these blocks and scree emerges a spring, although the flow is possibly now much reduced. It is a magical spot sadly now suffering from the ravages of modern times in particular 4X4s and trail motorbikes. Approximately 2.5km to the south-south-west of this location, as the crow flies, are the Priddy Circles.
Harptree Combe ST 55732/55302
At the top of Harptee Combe, near to the stile, are a number of boulders of silicified Dolomitic Conglomerate that are orange to purple-red with a pock marked surface that bear some similarity to the stones in the Great Circle at Stanton Drew.