"sweek" wrote in message
ups.com...
Does anyone have a line diagram, or maybe even one showing where it
used to be quad-tracked?

If you fancy staring at a screen working it out, you can see most of it on
Google Maps, including the old spur where two of the tracks left between
Canonbury (or, at the time the now dead Mildmay Park) and Dalston Junction
and headed on down to broad street.

dave