At SS 8405 4470 is a cairn with a hollow centre (Grinsells Porlock No 2), 9 paces across by 1.5 feet high. [1] This is a heather covered cairn 0.7 metres high, at SS 8401 4468. [10,11] Surveyed at 1:2500. [2] Ruined hut circle or cairn 500 metres west of Colley Water stone circle. Made of medium sized stones, it is 9 paces in diameter and 1 metre high. Hollowed centre and possible entrance on the northwest downslope side suggesting a hut circle. Two standing stones nearby (MSO7911). [3] A circular heap of stone was recorded 500m to the west of the Porlock stone circle. The feature is 9 metres in diameter and 1 metre high with an irregular profile. It is not certain whether or not this is a partially robbed cairn or a very ruinous hut circle. [4] SS 8405 4470. "Cairn" written on Ordnance Survey 1:10,000 map. [5] More likely to be a cairn. [6] Scheduled on 27 March 1996 together with stone row (MSO7911). [7] Centred at SS 84008 44694 is a robbed cairn. It lies on a low spur set down within a tributary valley of Weir Water. It comprises a circular, heather covered, stony mound 6.7 metres in diameter, disturbed by a robbing hollow driven in from the north. Surveyed with GPS, 12 August 1996. [8,9] The Scheduled Monument Condition Assessment of 2009 gave the site a survival score of 8. [12] This was surveyed during a measured field survey undertaken as part of the Dig Porlock project, run by the Exmoor Moorland Landscape Partnership Scheme. [13] The site was surveyed in May 2015 as part of the 2015 Exmoor Scheduled Monument Condition Assessment. It was given a survival score of 4. [14] This record was enhanced as part of the National Record of the Historic Environment to Exmoor National Park Historic Environment Record data transfer project. [15]