A small outcrop can be seen on the precipitous southern slopes of Prestonbury Common high above and to the east of Fingle Bridge. The scattering of outcrops here like others in the vicinity are clearly not of granite and are known locally as 'bad rock' and further extend downhill towards the river.
The 'Geology of the Country around OKEHAMPTON (1968)' by the Institute of Geological Sciences provides further information on page 81, where it is called 'Prestonbury Castle' and described as; "Scattered small crags of hornfelsed, striped and banded, mudstone, siltstone and sandstone in varying proportions..."
Prestonbury Common Tor
The map above is not a navigation tool and we recommend that the grid reference shown below is used in conjunction with an Ordnance Survey map and that training in its use with a compass is advised.
Grid Ref:
SX 745 899
Height:
265m
Parish:
Drewsteignton
Tor Classification:
Valley Side
Access:
Private (but visible from public land)
Rock Type:
Metamorphic
Credit:
Tim Jenkinson Institute of Geological Sciences
Reference / Further Reading:
Tim Jenkinson: East Dartmoor The Hidden Landscape: Rocks and Tors (published privately) Institute of Geological Sciences: Geology of the Country around OKEHAMPTON (1968)
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