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by andyjohnson0 1146 days ago
> The UK Ordnance Survey famously produced rich detailed maps across all of the United Kingdom .. save for blank voids over naval shipyards, weapons testing, secret nuclear bunkers, etc

The US/UK BMEWS station at Fylingdales in North Yorkshire used to be omitted from OS maps. Utterly pointless as there were three huge 40m+ high radomes on the site, which was next to a main road.