Picture of Upper Holloway Station

Historical version 7 of Upper Holloway Station (view current version)

Zone 2 rail station on the Gospel Oak to Barking Line.

It's worth noting that Archway Station on the Northern Line is just along the road, and that interchange between these two stations is a valid "out of station" interchange on Oyster PrePay (i.e. you'll only get charged for one continuous journey, rather than two separate ones). (Source: uk.transport.london)

See also:

OS X co-ord: 529746 OS Y co-ord: 186642 (Latitude: 51.563234 Longitude: -0.127958)
This is version 7 (as of 2009-05-04 14:53:31). View current version. List all versions.