South London hills

Ha, I came up that Hogtrough hill today on the way back from the rolap'z ride, rain and wind coming in from the left then stops as I crest the top...
Also went past Tommys 25% on the cudham lane. (Never been up it fixed either though)

Brasted Hill felt like the toughest of today's 4 notable climbs, all in 39/19:

White Lane (Titsey), Brasted, Sundridge, Hogtrough.

It is part of Greater London, according to some sources of information ;)