Trenches are lined with conduit ... In Northern California, Pacific Gas & Electric plans on undergrounding 10,000 miles of ...

Although the trenches were designed to minimise the number of casualties, they were still at risk of gun fire and shrapnel. Sometimes the shell fire caused trenches to collapse burying men beneath ...

This movement results in deep ocean trenches, volcanic eruptions, and earthquake epicenters along the boundaries where the plates meet, called fault lines. The Ring of Fire is home to the deepest ...