| |
| | The Imperial War Museum Trench Map Archive |
 | | For security reasons, although the trench maps show all the German trenches and tactical features, they mostly only show the British front line, until 1917-18 when this policy was gradually relaxed; in 1917 British trenches were shown for about 250 metres behind the front line, while in 1918 all British trenches were shown. |
 | | The intricacies of the trench systems are shown, plotted from air photos, right down to individual machine guns, trench mortars, command posts, field battery positions, etc. Further back, the enemys medium and heavy battery positions are shown together with roads, tracks and light railways and supply and ammunition dumps, and rear defence systems. |
 | | The regular series 1:10,000 trench maps (series GSGS 3062) were produced for most front line areas from mid-1915 until the last, mobile, operations of 1918 which were conducted on smaller scale maps. |
| www.great-war-trench-maps.com /aboutCD.htm (354 words) |
|