Two photographs of BO Tower in downtown Kalamazoo.  This tower controlled the crossing of the Michigan Central main line from Detroit to Chicago, along with several other railroads in the area.  The tower is still open as of 2002.  Photos by Charlie Whipp.  Left: August 16, 1975, Right:  February 28, 1988

Above, the interior of BO interlocking, date unknown.  Below, a view of the operator's desk in 1990.  [Charlie Whipp]

The "model" board at BO Tower, in the 1990's.  [Charlie Whipp]