St Maughold's Chair is shown on the 1870 1:2500 scale Ordnance Survey map to the east of St Maughold's Well.   It was a natural feature formed either in the cliff edge or in the rocks beneath. The site can not be approached from the east or from the west where the land slopes steeply down to a cliff edge known to be dangerous.  From St Maughold's Well no rocks can be seen to the east. It is possible that the feature has been destroyed by coastal erosion since 1870. No information has been obtained locally on the 'chair'.