Diagrammaitc map of the London Overground Network as from December 2012 onwards including the South London Line and Euston
Pneumaman
CC BY 3.0
<a href="//commons.wikimedia.org/wiki/File:Overground_first.png" class="image"><img alt="Overground first.png" src="https://upload.wikimedia.org/wikipedia/commons/d/df/Overground_first.png" decoding="async" width="1191" height="1077" data-file-width="1191" data-file-height="1077"></a>