"Mwmbwls" wrote

I don't think that it was geology that was the dominant blocker. Under
the New Works Programme, undertaken to relieve the Depression,
parliamentary powers were obtained in 1931 to build the Camberwell
extension.with a terminus under Camberwell Green However, London
Transport were not convinced that the route would pay.and the project
was postponed. The Camberwell powers were renewed in 1955 prolonging
their validity to 1961 but were allowed to lapse in favour of the
Victoria Line extension to Brixton. In 1963 the London Transport board
considered an extension to Peckham. The 1974 London Rail Study
believed the cost benefit case to be weak and so Camberwell like
sleeping beauty nodded off until most recently in 2006

Of course, Camberwell used to have trains to Farringdon, Kings Cross, and
Moorgate - but Camberwell New Road station was closed in 1916. Quite a lot
of it is still there.

Peter