The German front line facing the infamous Sunken Lane runs just inside the treeline, and was known as the 'Bernwerk'. The zig-zag line of the trench is very clear to see here, and the positions afford a clear line of fire onto the Hawthorn Ridge opposite, whilst those rising from the road and onto the ridge cover the Sunken Lane positions in the classic interlocking fire pattern. It is self-evident what little chance the attacking troops stood, despite the blowing of the vast mine beneath the Hawthorn Redoubt.