Published On Apr 23, 2020
It's the sort of thing that turns up in quizzes and that I get asked a lot ... how much of the London Underground is actually underground? Turns out, there's not a straightforward answer as it depends on how you define a station as being 'Underground' ... let's discuss!
Geoff's Actual Underground Map: http://www.geofftech.co.uk/downloads/...
TfL's Tube Map Showing Tunnels: http://content.tfl.gov.uk/tube-map-wi...
The Section 12 Fire Regulations Map: https://www.whatdotheyknow.com/reques...
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