At on July 1916 the Battle of the Somme started with explosion of 17 massive 'mines' underneath enemy territory. Lochnagar was the largest of these. It remains "The largest crater ever made by man in anger".
Stand in the tunnels where Canadian troops stood before the assault on Vimy Ridge and visit the Canadian and German trenches. You will see the scattered landscape of the Newfoundland Memorial Park in Beaumont Hamel. Thiepval Memorial, Courcelette Can