Embodiments of the present invention comprise a system for positioning a
drawn implement having a transverse tool bar being pulled by a vehicle
traveling generally along a desired path of movement, the vehicle having
a mounting hitch on the rear end thereof where a system hitch is
configured to adjust its angular orientation and that of the tool bar
relative to the vehicle mounting hitch and a global positioning system
having an antenna mounted on the system hitch operable to detect the
position of the tool bar of the implement relative to the desired path as
the vehicle moves generally along the desired path and generate a signal
that is indicative of the lateral position of the implement relative to
the desired path and means for controlling the hitch means to adjust the
angular orientation of the hitch means and the tool bar so that the
implement follows the desired path of movement in response to the global
positioning system signals.