Power short in the late '70s, the Santa Fe leased some GPs from the Chessie System, as can be seen by the two GP40s trailing ATSF SD40 5004. To avoid numbering confusion, a 9 was placed over the 3 on the roadnumber on the Baltimore & Ohio units' cab sides, changing, for example, B&O 3744 to 9744. Having just passed Cable, this eastbound is rounding the last curve before entering the city of Tehachapi in southern California on December 2, 1979.
