The Hill 70 planning map is a trench map from the Battle of Hill 70 with hand written annotations showing battle lines, trenches and positions that would have been used to support commanders on the ground.
The Battle of Hill 70 took place from the 15th to the 25th of August 1917, between the Canadian Corps and five divisions of the German Army. It was the job of the Canadians to try and draw troops from the 3rd Battle of Ypres by attacking at Lens. But instead of attacking Lens, the Corps attacked the tactically important Hill 70, which overlooked the City of Lens This forced the Germans to send countless counter attacks against the Canadian Lines.
While the operation was a success tactically, strategically it only prevented local divisions from being diverted to the 3rd Battle of Ypres, as other troops were still sent to Ypres.