PC: Lease units/how far South/West

["Craig E. Hatter" <ns4610@xxxxxxxxxxxxx>]

A fellow modeler,the shame,indicates that he recently found a slide showing
2 PC U25Bs in Nashville on the L&N in 1973. Was wondering if anyone can
provide the farthest west or south a PC unit went either in hours payback or
on lease. Photo proof  would be of the greatest interest with a date if
possible.