The opposing lines and mine-riven no man’s land of Éparges ridge, called by the Germans Combres Höhe, April 1917. The Germans held the summit with a deep and comprehensive trench system, which was mirrored below ground by a powerful mine network. They have driven through the summit of the ridge to blow the less complete French trenches on the left. Point X, where the French initiated mining in November 1914, is farthest from the camera. (Author).