{"entry-date":"2026-07-30","start-date":"","end-date":"","entity":13900290,"name":"Car Dyke, Roman canal at Helpringham","dataset":"scheduled-monument","typology":"geography","reference":"1004946","prefix":"scheduled-monument","organisation-entity":16,"geometry":"MULTIPOLYGON (((-0.298545 52.935116, -0.297898 52.935809, -0.297474 52.93621, -0.297176 52.936509, -0.29713 52.93655, -0.296995 52.936617, -0.296861 52.936656, -0.296677 52.936695, -0.29285 52.937265, -0.291677 52.937438, -0.292175 52.937654, -0.292329 52.9377, -0.292388 52.937697, -0.296551 52.937132, -0.297248 52.93701, -0.297409 52.936972, -0.297464 52.936955, -0.297499 52.936937, -0.297632 52.936807, -0.297999 52.936435, -0.298805 52.935633, -0.29887 52.935546, -0.298976 52.935415, -0.299008 52.935356, -0.299046 52.93526, -0.299044 52.935243, -0.299033 52.93523, -0.298999 52.935212, -0.298643 52.935124, -0.298592 52.93511, -0.298567 52.935108, -0.298545 52.935116)))","point":"POINT (-0.295928 52.936752)","quality":"authoritative","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1004946"}