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{"minzoom":false,"maxzoom":false,"mappingservice":"leaflet","width":"auto","height":"600px","centre":false,"title":"","label":"","icon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"zoom":false,"defzoom":14,"layers":["OpenStreetMap","Esri.WorldImagery"],"image layers":[],"overlays":[],"resizable":false,"fullscreen":true,"scrollwheelzoom":true,"cluster":false,"clustermaxzoom":20,"clusterzoomonclick":true,"clustermaxradius":1,"clusterspiderfy":true,"geojson":"","clicktarget":"","imageLayers":[],"locations":[{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EBarkway Chalk Pit\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ENature reserve in North Hertfordshire\n\u003C/p\u003E\u003C/div\u003E","title":"Barkway Chalk Pit@Nature reserve in North Hertfordshire\n","link":"","lat":52.011,"lon":0.011,"icon":"/images/d/d2/Red-marker.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q124945072\" title=\"Q124945072\"\u003ECambridgeshire South Cambridgeshire District Emergency Centre\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Ecivil defense center\n\u003C/p\u003E\u003C/div\u003E","title":"Cambridgeshire South Cambridgeshire District Emergency Centre@ civil defense center\n","link":"","lat":52.1983,"lon":0.128944,"icon":"/images/6/6e/M_bunker.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q114863204\" title=\"Q114863204\"\u003ECambridge Regional War Room\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Ebunker\n\u003C/p\u003E\u003C/div\u003E","title":"Cambridge Regional War Room@ bunker\n","link":"","lat":52.1879,"lon":0.12766,"icon":"/images/6/6e/M_bunker.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q124945116\" title=\"Q124945116\"\u003EEdmonton Borough Control Site 1\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Ecivil defense center\n\u003C/p\u003E\u003C/div\u003E","title":"Edmonton Borough Control Site 1@ civil defense center\n","link":"","lat":51.6324,"lon":-0.0697931,"icon":"/images/6/6e/M_bunker.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q124945118\" title=\"Q124945118\"\u003EEdmonton Borough Control Site 2\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Ecivil defense center\n\u003C/p\u003E\u003C/div\u003E","title":"Edmonton Borough Control Site 2@ civil defense center\n","link":"","lat":51.6227,"lon":-0.061176,"icon":"/images/6/6e/M_bunker.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q124837838\" title=\"Q124837838\"\u003EHertford bunker\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Ebunker\n\u003C/p\u003E\u003C/div\u003E","title":"Hertford bunker@ bunker\n","link":"","lat":51.7937,"lon":-0.0799027,"icon":"/images/6/6e/M_bunker.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q6386622\" title=\"Q6386622\"\u003EKelvedon Hatch Secret Nuclear Bunker\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Ebunker, military museum, Royal Air Force station, \u003Ca rel=\"nofollow\" class=\"external text\" href=\"https://www.tripadvisor.com/564498\"\u003Etripadvisor\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"Kelvedon Hatch Secret Nuclear Bunker@ bunker, military museum, Royal Air Force station, tripadvisor\n","link":"","lat":51.672,"lon":0.256718,"icon":"/images/d/d7/Tm_bunker.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q66478849\" title=\"Q66478849\"\u003ELippitts Hill Anti-Aircraft Operations Room\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Ebunker\n\u003C/p\u003E\u003C/div\u003E","title":"Lippitts Hill Anti-Aircraft Operations Room@ bunker\n","link":"","lat":51.6536,"lon":0.0198301,"icon":"/images/6/6e/M_bunker.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q124945223\" title=\"Q124945223\"\u003ESaffron Walden Uttlesford District Council Emergency Centre\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Ecivil defense center\n\u003C/p\u003E\u003C/div\u003E","title":"Saffron Walden Uttlesford District Council Emergency Centre@ civil defense center\n","link":"","lat":52.019,"lon":0.236795,"icon":"/images/6/6e/M_bunker.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q124945244\" title=\"Q124945244\"\u003ESt Albans City and District Council Emergency Centre\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Ecivil defense center\n\u003C/p\u003E\u003C/div\u003E","title":"St Albans City and District Council Emergency Centre@ civil defense center\n","link":"","lat":51.7535,"lon":-0.335969,"icon":"/images/6/6e/M_bunker.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q124945269\" title=\"Q124945269\"\u003ETottenham Borough Control\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Ecivil defense center\n\u003C/p\u003E\u003C/div\u003E","title":"Tottenham Borough Control@ civil defense center\n","link":"","lat":51.5872,"lon":-0.0728332,"icon":"/images/6/6e/M_bunker.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q24993397\" title=\"Q24993397\"\u003EAshwell Quarry and Quarry Springs\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Equarry\n\u003C/p\u003E\u003C/div\u003E","title":"Ashwell Quarry and Quarry Springs@ quarry\n","link":"","lat":52.0401,"lon":-0.173801,"icon":"/images/a/ab/M_mine.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q27990706\" title=\"Q27990706\"\u003EBarrington Chalk Pit\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ESite of Special Scientific Interest, chalk quarry\n\u003C/p\u003E\u003C/div\u003E","title":"Barrington Chalk Pit@ Site of Special Scientific Interest, chalk quarry\n","link":"","lat":52.142,"lon":0.0329161,"icon":"/images/a/ab/M_mine.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q24662438\" title=\"Q24662438\"\u003EBarrington Quarry\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Equarry\n\u003C/p\u003E\u003C/div\u003E","title":"Barrington Quarry@ quarry\n","link":"","lat":52.1435,"lon":0.0364104,"icon":"/images/a/ab/M_mine.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q5050176\" title=\"Q5050176\"\u003ECastle Lime Works Quarry\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Equarry\n\u003C/p\u003E\u003C/div\u003E","title":"Castle Lime Works Quarry@ quarry\n","link":"","lat":51.7089,"lon":-0.222575,"icon":"/images/a/ab/M_mine.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q24993780\" title=\"Q24993780\"\u003EHall's Quarry\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Equarry\n\u003C/p\u003E\u003C/div\u003E","title":"Hall's Quarry@ quarry\n","link":"","lat":51.9291,"lon":0.2059,"icon":"/images/a/ab/M_mine.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q20878146\" title=\"Q20878146\"\u003EHexton Chalk Pit\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Echalk quarry\n\u003C/p\u003E\u003C/div\u003E","title":"Hexton Chalk Pit@ chalk quarry\n","link":"","lat":51.9568,"lon":-0.389558,"icon":"/images/a/ab/M_mine.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q20711582\" title=\"Q20711582\"\u003EHill End Pit\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Echalk quarry\n\u003C/p\u003E\u003C/div\u003E","title":"Hill End Pit@ chalk quarry\n","link":"","lat":51.9006,"lon":-0.260146,"icon":"/images/a/ab/M_mine.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q24662441\" title=\"Q24662441\"\u003EWiddington Pit\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Equarry\n\u003C/p\u003E\u003C/div\u003E","title":"Widdington Pit@ quarry\n","link":"","lat":51.9574,"lon":0.227389,"icon":"/images/a/ab/M_mine.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q24885278\" title=\"Q24885278\"\u003EBarnet Tunnel\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Erailway tunnel\n\u003C/p\u003E\u003C/div\u003E","title":"Barnet Tunnel@ railway tunnel\n","link":"","lat":51.6296,"lon":-0.158057,"icon":"/images/0/04/M_tunnel.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q120489536\" title=\"Q120489536\"\u003EBell Common Tunnel\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Eroad tunnel\n\u003C/p\u003E\u003C/div\u003E","title":"Bell Common Tunnel@ road tunnel\n","link":"","lat":51.6897,"lon":0.0940376,"icon":"/images/0/04/M_tunnel.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q116702014\" title=\"Q116702014\"\u003EHadley Wood North Tunnel\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Erailway tunnel\n\u003C/p\u003E\u003C/div\u003E","title":"Hadley Wood North Tunnel@ railway tunnel\n","link":"","lat":51.672,"lon":-0.176242,"icon":"/images/0/04/M_tunnel.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q116702013\" title=\"Q116702013\"\u003EHadley Wood South Tunnel\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Erailway tunnel\n\u003C/p\u003E\u003C/div\u003E","title":"Hadley Wood South Tunnel@ railway tunnel\n","link":"","lat":51.6659,"lon":-0.175899,"icon":"/images/0/04/M_tunnel.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q7085388\" title=\"Q7085388\"\u003EOld Warden Tunnel\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Erailway tunnel\n\u003C/p\u003E\u003C/div\u003E","title":"Old Warden Tunnel@ railway tunnel\n","link":"","lat":52.0884,"lon":-0.375973,"icon":"/images/0/04/M_tunnel.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q116701855\" title=\"Q116701855\"\u003EPonsbourne Tunnel\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Erailway tunnel\n\u003C/p\u003E\u003C/div\u003E","title":"Ponsbourne Tunnel@ railway tunnel\n","link":"","lat":51.7417,"lon":-0.100594,"icon":"/images/0/04/M_tunnel.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q116701682\" title=\"Q116701682\"\u003EWelwyn North Tunnel\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Erailway tunnel\n\u003C/p\u003E\u003C/div\u003E","title":"Welwyn North Tunnel@ railway tunnel\n","link":"","lat":51.837,"lon":-0.185379,"icon":"/images/0/04/M_tunnel.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q116689751\" title=\"Q116689751\"\u003EWelwyn South Tunnel\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Erailway tunnel\n\u003C/p\u003E\u003C/div\u003E","title":"Welwyn South Tunnel@ railway tunnel\n","link":"","lat":51.8278,"lon":-0.189946,"icon":"/images/0/04/M_tunnel.png"},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Q7989445\" title=\"Q7989445\"\u003EWeston Hills Tunnel\u003C/a\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003Eroad tunnel\n\u003C/p\u003E\u003C/div\u003E","title":"Weston Hills Tunnel@ road tunnel\n","link":"","lat":51.9778,"lon":-0.176941,"icon":"/images/0/04/M_tunnel.png"}],"imageoverlays":null}
Barkway Chalk Pit 2
Barkway Chalk Pit 3
Barkway Chalk Pit 4
Barkway Chalk Pit 5
Barkway Chalk Pit 6
Barkway Chalk Pit 7
