{"entry-date":"2026-06-11","start-date":"","end-date":"","entity":13903291,"name":"The Three Dykes (or Five Riggs)","dataset":"scheduled-monument","typology":"geography","reference":"1004911","prefix":"scheduled-monument","organisation-entity":16,"geometry":"MULTIPOLYGON (((-0.77071 54.108331, -0.770536 54.108365, -0.770515 54.108752, -0.770484 54.108941, -0.770514 54.109297, -0.770585 54.109928, -0.770644 54.110732, -0.770638 54.11094, -0.770618 54.111157, -0.770572 54.111459, -0.770581 54.111875, -0.770605 54.112238, -0.770894 54.11221, -0.770954 54.111735, -0.771059 54.111302, -0.771109 54.111043, -0.771083 54.110803, -0.77107 54.110086, -0.771009 54.109141, -0.770987 54.108891, -0.770949 54.108749, -0.77091 54.108554, -0.770909 54.10833, -0.77071 54.108331)), ((-0.771328 54.105331, -0.771301 54.105447, -0.771266 54.105552, -0.771076 54.106013, -0.770886 54.106412, -0.770705 54.10685, -0.770577 54.107136, -0.770501 54.107332, -0.770395 54.107641, -0.770842 54.107648, -0.770949 54.107312, -0.771384 54.106185, -0.771588 54.105748, -0.771716 54.105434, -0.771805 54.105271, -0.771381 54.105223, -0.771328 54.105331)), ((-0.771494 54.103371, -0.771436 54.10372, -0.771422 54.103851, -0.77142 54.104011, -0.771392 54.104265, -0.77136 54.104392, -0.77135 54.104503, -0.771354 54.104612, -0.771396 54.104774, -0.771861 54.104797, -0.771912 54.104804, -0.77199 54.104841, -0.772075 54.104516, -0.772092 54.104273, -0.772149 54.103958, -0.772221 54.103725, -0.772255 54.103522, -0.772272 54.103282, -0.771553 54.10323, -0.771494 54.103371)))","point":"POINT (-0.77116 54.107424)","quality":"authoritative","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1004911"}