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The Royal Observer Corps underground monitoring post located 200 metres north of Southfield House in Yorkshire is a Cold War–era structure built to house personnel engaged in nuclear fallout monitoring and air raid reporting. Constructed during the 1960s as part of the nationwide civil defence infrastructure, the post represents the evolution of observer corps operations from their World War II visual spotting function into the nuclear age. The site retains physical evidence of its dual–period history, with remains indicating both wartime air observation capabilities and later underground protective construction. The post exemplifies the strategic importance placed on civilian defence and reconnaissance infrastructure across both major twentieth–century conflicts affecting British territory.
Royal Observer Corps underground monitoring post and World War II visual spotting post, 200m north of Southfield House is a scheduled monument protected by Historic England under reference 1021192. View the official record →
The Royal Observer Corps underground monitoring post located 200 metres north of Southfield House in Yorkshire is a Cold War–era structure built to house personnel engaged in nuclear fallout monitoring and air raid reporting. It is designated a Scheduled Ancient Monument by Historic England (NHLE) under reference 1021192.
Royal Observer Corps underground monitoring post and World War II visual spotting post, 200m north of Southfield House is a Scheduled Ancient Monument, legally protected by Historic England (NHLE) — the body responsible for designating and safeguarding heritage sites in England. The official designation reference is 1021192.
Several scheduled monuments lie within 10 km, including Hallgarth medieval hall and moat (0.6 km), Skipsea Castle: 11th century motte and bailey castle and inland harbour (1.4 km), Village cross (4.2 km).
This page is just one thread. A full Aubrey report pulls together 15 strands of Royal Observer Corps underground monitoring post and World War II visual spotting post, 200m north of Southfield House's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Royal Observer Corps underground monitoring post and World War II visual spotting post, 200m north of Southfield House stands on White Chalk Subgroup, bedrock that formed in the Maastrichtian. The rock here is chalk.