Marden Henge

Marden’s bank, inner ditch and northern entrance.

Marden Henge, about ten miles north of Stonehenge in Wiltshire, is one of the biggest henges in Britain and one of the most unusual. It is in a crook of the Avon, the river which is closely linked to Stonehenge, and the river replaces the bank for part of its perimeter.

The henge, roughly oval and 500 metres across at its widest point, had an entrance aligned precisely north, and a second to the southeast, linked to a causeway which led to the river. Its bank survives up to three metres high and forty metres wide.

The Avon at Marden

The henge was built on the flat river plain where today, after heavy rain, the mud-laden river can be seen creeping around willow trunks and through the long grass on its banks. It probably once filled the henge ditch and waterlogged the surrounding land. Little can be seen of the surrounding landscape beyond the river plain, with the exception of the ridgeline which marks the start of Salisbury Plain, and water seems to be a key aspect of the monument’s character.

The view across the henge towards the river.

The henge has been associated with the construction of Stonehenge. The huge sarsen stones, incorporated into Stonehenge around 2500BC, were dragged from the Marlborough Downs in the north, through the Vale of Pewsey and up onto Salisbury Plain. Recent work has shown that they most likely crossed the Avon at Marden, and were then dragged up the gentle slope which leads from the village onto the high plain, about the only feasible route when dragging multiple twenty-tonne rocks.

Many henges were dug on sites with already sacred or historical importance, perhaps as an act of enclosing and formalising that memory. Marden’s enclosing ditch is dated to 2570-2290BC, the same time or slightly after the sarsens were moved. Perhaps its creation was the final act of Stonehenge’s builders after their work was done.

The slope likely used to drag Stonehenge’s sarsens up onto Salisbury Plain

Marden was also the site of a large earthen mound, similar to the much more famous Silbury Hill near Avebury, but on a smaller scale. The mound, 70 metres in diameter and nine metres high, built sometime during or after the henge’s construction, was destroyed after antiquarians dug through it. Nothing now survives. Silbury Hill was built around 2400-2300BC; Marden may have been a similar date.

Both mounds were linked to encircling watercourses, and I feel the idea carries weight that they represent something akin to the mythical island of creation, rising from the primeval waters. It would certainly feel that way, as people watched the water silently creep through grass and tree roots around the mound as heavy rain swelled its course.

Why was it built at Marden? Was Marden linked to the birthpoint of Stonehenge? Perhaps the river was the boundary between two communities, the point where the stones were ceremonially handed over, and so this site was chosen for the great mound to be raised. Unfortunately, thanks to clumsy treasure seekers, we will probably never know.