52°28′49″N 2°07′51″W / 52.48028°N 2.13083°W
The Earl of Dudley’s Railway or Pensnett Railway, was a 4 ft 8+1⁄2 in (1,435 mm) standard gauge railway that developed from a single 3-mile (4.8 km) line opened in 1829 to, at its maximum extent, a 40-mile (64 km) long network around the Earl of Dudley’s Iron Works at Round Oak near Brierley Hill.