{"geometry":{"type":"MultiPolygon","coordinates":[[[[-4.770744,50.470009],[-4.77092,50.470067],[-4.771153,50.470098],[-4.771349,50.470155],[-4.771913,50.47024],[-4.771945,50.470128],[-4.772028,50.469905],[-4.772114,50.469731],[-4.772284,50.469333],[-4.771191,50.469101],[-4.770744,50.470009]]]]},"type":"Feature","properties":{"entry-date":"2026-06-11","start-date":"1986-03-07","end-date":"","entity":13903913,"name":"Roman fort called 'Nanstallon Roman fort' 135m south west of Tregear","dataset":"scheduled-monument","typology":"geography","reference":"1007273","prefix":"scheduled-monument","organisation-entity":16,"quality":"authoritative","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1007273"}}