10 miles WSW of Clonkilty.
From Burl 'good circle 31ft' (30.948ft).
In so many instances it's comes down to the square root of 2 with these stone circles. 1414.21356 or it's approximate using the old Saxon foot of 13.2 inches and exact value for pi. circumference x 16 digits = 1414.21356.
Local legend not good but connected to sun and moon. Burl devotes 2 pages to this circle.