Miningpower
Well-Known Member
Here's a video of mine showing a Marion 7400 digging overburden. This 7400 was first assembled in 1958 nearly 40 miles away from where it's currently working. The first attached picture shows the dragline when it was brand new in 58'. This dragline has been digging non stop for 52 years at three different locations across the anthracite field of PA. At one time this 7400 worked alongside the massive Marion 8700, which is also still working today pulling coal. Today it swings its boom down in a narrow 200ft+ deep pit, fishing for black diamonds.
YouTube - Marion 7400 Stripping Overburden
YouTube - Marion 7400 Stripping Overburden