Footnotes
- Beaufort
- Manin
- Avesnes-Le-Comte
- Hauteville
- Wanquetin
- Habarcq
- Agnez
- Gouves
- Montenescourt
- Berneville
- Ronville Caves - Cave and tunnel system extending south eastwards from Arras.
- Agnes-Les-Duisans
- Warlus
- Telegraph Hill
- Citadelle
- Tilloy-Les-Mofflaines
- Hindenburg Line - A defensive line, 90 miles long, constructed by the German Army during the winter of 1916 & 17. Designed to shorten the front line by 25 miles and thereby reduce the number of Divns required to hold it
- Wancourt Tower - A German observation post based on a ruined windmill strengthened with concrete. It ceased to exist as a landmark on the night of the 13th April.
- The Harp - Trench system so named because of its shape
- Nepal Trench
- Niger Trench
- Cojeul Switch
- Beaufort
- Manin
- Avesnes-Le-Comte
- Hauteville
- Wanquetin
- Habarcq
- Agnez
- Gouves
- Montenescourt
- Berneville
- Ronville Caves - Cave and tunnel system extending south eastwards from Arras.
- Agnes-Les-Duisans
- Warlus
- Telegraph Hill
- Citadelle
- Tilloy-Les-Mofflaines
- Hindenburg Line - A defensive line, 90 miles long, constructed by the German Army during the winter of 1916 & 17. Designed to shorten the front line by 25 miles and thereby reduce the number of Divns required to hold it
- Wancourt Tower - A German observation post based on a ruined windmill strengthened with concrete. It ceased to exist as a landmark on the night of the 13th April.
- The Harp - Trench system so named because of its shape
- Nepal Trench
- Niger Trench
- Cojeul Switch
- Beaufort
- Manin
- Avesnes-Le-Comte
- Hauteville
- Wanquetin
- Habarcq
- Agnez
- Gouves
- Montenescourt
- Berneville
- Ronville Caves - Cave and tunnel system extending south eastwards from Arras.
- Agnes-Les-Duisans
- Warlus
- Telegraph Hill
- Citadelle
- Tilloy-Les-Mofflaines
- Hindenburg Line - A defensive line, 90 miles long, constructed by the German Army during the winter of 1916 & 17. Designed to shorten the front line by 25 miles and thereby reduce the number of Divns required to hold it
- Wancourt Tower - A German observation post based on a ruined windmill strengthened with concrete. It ceased to exist as a landmark on the night of the 13th April.
- The Harp - Trench system so named because of its shape
- Nepal Trench
- Niger Trench
- Cojeul Switch
- Beaufort
- Manin
- Avesnes-Le-Comte
- Hauteville
- Wanquetin
- Habarcq
- Agnez
- Gouves
- Montenescourt
- Berneville
- Ronville Caves - Cave and tunnel system extending south eastwards from Arras.
- Agnes-Les-Duisans
- Warlus
- Telegraph Hill
- Citadelle
- Tilloy-Les-Mofflaines
- Hindenburg Line - A defensive line, 90 miles long, constructed by the German Army during the winter of 1916 & 17. Designed to shorten the front line by 25 miles and thereby reduce the number of Divns required to hold it
- Wancourt Tower - A German observation post based on a ruined windmill strengthened with concrete. It ceased to exist as a landmark on the night of the 13th April.
- The Harp - Trench system so named because of its shape
- Nepal Trench
- Niger Trench
- Cojeul Switch
- Beaufort
- Manin
- Avesnes-Le-Comte
- Hauteville
- Wanquetin
- Habarcq
- Agnez
- Gouves
- Montenescourt
- Berneville
- Ronville Caves - Cave and tunnel system extending south eastwards from Arras.
- Agnes-Les-Duisans
- Warlus
- Telegraph Hill
- Citadelle
- Tilloy-Les-Mofflaines
- Hindenburg Line - A defensive line, 90 miles long, constructed by the German Army during the winter of 1916 & 17. Designed to shorten the front line by 25 miles and thereby reduce the number of Divns required to hold it
- Wancourt Tower - A German observation post based on a ruined windmill strengthened with concrete. It ceased to exist as a landmark on the night of the 13th April.
- The Harp - Trench system so named because of its shape
- Nepal Trench
- Niger Trench
- Cojeul Switch
- Beaufort
- Manin
- Avesnes-Le-Comte
- Hauteville
- Wanquetin
- Habarcq
- Agnez
- Gouves
- Montenescourt
- Berneville
- Ronville Caves - Cave and tunnel system extending south eastwards from Arras.
- Agnes-Les-Duisans
- Warlus
- Telegraph Hill
- Citadelle
- Tilloy-Les-Mofflaines
- Hindenburg Line - A defensive line, 90 miles long, constructed by the German Army during the winter of 1916 & 17. Designed to shorten the front line by 25 miles and thereby reduce the number of Divns required to hold it
- Wancourt Tower - A German observation post based on a ruined windmill strengthened with concrete. It ceased to exist as a landmark on the night of the 13th April.
- The Harp - Trench system so named because of its shape
- Nepal Trench
- Niger Trench
- Cojeul Switch