"Lawrence Myers" wrote in message
...
When was there a siding at Angel?

Full details on http://members.lycos.co.uk/raggajohn/northerndis.html.

The present siding at Euston, which
connects the SB line with the NB and the loop to the Piccadilly
line, was originally the NB line. As far as I know there was previously no
siding at either location.

Definitely sidings at both Angel and Euston. In both cases on the northbound
side, south of the station concerned. The disused tunnel can clearly be
seen at Euston, but only from trains travelling over the Euston Loop. The
one at Angel now forms part of the northbound diversion tunnel, and all
northbound trains travel through a section of it.