Interesting Soviet Era Maps. BBC Points West (Tuesday 27 February) carried an interesting piece about some Soviet era maps that have been discovered. The BBC Points West news team were pontificating what the purpose and origins of such detailed maps might be. The maps covering the South West were extremely well detailed and included maps of both Bristol and Swindon, they even detailed outlying towns such as Clevedon. What was telling about these maps were the circles rather than the gridlines that are overlaid on them. From the glimpse I had of the one for Bristol the âfirst circleâ appears over the extensive then British Aircraft Corporation and Rolls Royce factories at Filton. The last time I saw something similar it was in relation to maps of the Suffield training area in Canada. The Suffield maps were marked with circles precisely because Suffield had previously been earmarked by the Canadians as their test sight for a nuclear programme which they subsequently abandoned. The inescapable conclusions that can be drawn from these maps are that they were intended to be used in the event of the unthinkable with âground zeroâ centring over the aircraft facilities in northwest Bristol. Wonder if the Soviets were ever aware of RAF Caerwent which lies just across the Severn Estuary from the Filton site? The site was occupied by the US Army (Europe) for a considerable number of years before their draw down. Were they ever aware of Hallen and the critical role that played in relation to war preparations? Chilling but hardly surprising!