text: This appears to be a Data error.
  The Map Point that measures the distance from a railway station is out of place for Blackheath station. Places very near Blackheath Station only show distances for Lewisham or Hither Green etc.
  Blackheath is showing its location as about one mile south of Buxton station in Derbyshire which is 163 miles out of place.
  Amber1Tilly2