A PREHISTORIC burial cist, situated high up on Whitehorse Hill on northern Dartmoor, was excavated by experts last week. 

The cist was discovered ten years ago when its end stone fell out of the peat hag which had been concealing it.

A temporary wall was erected in front of this area in an attempt to protect the archaeology which it may still contain.  The cist is particularly unusual because of its situation within peat and its apparent isolation from other known archaeological sites.

A spokesman for Dartmoor National Park said: 'Over the last ten years the peat surrounding and overlying the cist has eroded away because of its exposed condition, and the decision was taken to excavate it in order to recover any surviving archaeological and environmental information which it might contain. 

'It is well over 100 years since a burial cist was excavated on Dartmoor.

'It is hoped that analysis of buried pollen, insects and charcoal within the peat will help establish detail of the contemporary surrounding landscape.

'Artefacts deposited as part of the burial ritual, such as pottery, beads and stone tools will add to the understanding of the time, 5,000 years ago, when the burial is believed to have taken place.'

Prehistoric cists are a particular kind of burial monument found on Dartmoor.  They are chest-like structures, usually sunk into the ground, with two long granite side slabs and two end slabs set between the sides and covered with a large slab.

They are sometimes found within the remains of a burial cairn, and/or associated with a stone row. They contained both inhumations and cremations — the latter were usually placed in a type of pot known as a Beaker.

Flint tools have also been found with the burials.

There are almost 200 surviving cists on Dartmoor and more than 90% of these have their long sides orientated in a NW/SE direction. 

The reason for this particular orientation is not clearly understood, but it was obviously of significance to the prehistoric grave builders.  

Publication of the findings will take place later in the year.