 Coldrum Long Barrow is comparatively isolated from the other Medway Megaliths ; in this it is unique , given that the other surviving examples are clustered into two groups . However , it is possible that another chambered tomb was located nearby ; a razed , elongated earthen mound with an east @-@ west orientation is located in a hollow at the foot of the downs just under a quarter of a mile to the north of the Coldrum Stones . It may be that this represents the remnants of another such monument which has had its stones removed or buried . Several large sarsens to the south of the <unk> might represent the remnants of a further such tomb , since destroyed . 
