{"entry-date":"2026-08-20","start-date":"","end-date":"","entity":14500768,"name":"Wheal Martyn SSSI","dataset":"site-of-special-scientific-interest","typology":"geography","reference":"1001085","prefix":"site-of-special-scientific-interest","organisation-entity":501910,"geometry":"MULTIPOLYGON (((-4.809964 50.365178, -4.809772 50.365198, -4.809506 50.365237, -4.809465 50.365245, -4.80943 50.36526, -4.809395 50.365279, -4.809405 50.36529, -4.809448 50.365312, -4.809572 50.365354, -4.809768 50.365416, -4.809808 50.365425, -4.809887 50.365428, -4.810014 50.365422, -4.810138 50.365412, -4.810247 50.365398, -4.810368 50.365372, -4.810406 50.36536, -4.810419 50.365353, -4.810433 50.365343, -4.810432 50.365334, -4.810428 50.365328, -4.81041 50.365319, -4.810316 50.36528, -4.810208 50.365228, -4.810162 50.365212, -4.810079 50.365193, -4.809972 50.365178, -4.809964 50.365178)))","point":"POINT (-4.809924 50.365306)","quality":"authoritative"}