The megalithic complex near the village of Stanton Drew consists of three stone circles, two stone avenues, a cove of stones and an outlier.
The Great Circle, the second largest English stone ring after the outer circle at Avebury, is 112m (368ft) in diameter and is composed of 27 stones.
Beside it lies the North-East Ring. It is 29.6m (97ft) across and its eight massive boulders, four of which still standing, are the biggest of the entire complex. The South-West Ring, badly ruined, is on private land but is accessible.
From the two visible circles there are two avenues running eastward towards the river Chew. The avenue starting from the North-East Ring, composed of seven surviving stones, and the wrecked one extending from the Great Circle, if continued, would have merged into one.
The Cove, in a straight line with the centres of the two accessible stone circles, consists of two huge upright stones with a recumbent slab lying between them.
The Outlier, also known as Hautville's Quoit, lies half a kilometer (1850ft) north-east of the circles, on a high ridge. It is a sandstone boulder, now recumbent, and it is in a straight line with the centres of the Great Circle and the South-West Ring.
Source:
Stone Pages
Official Websites from English Heritage:
link 1
link 2