ATSF 8524 is the final unit of a twenty five unit order of U33Cs delivered to Santa Fe in mid-1969.
GUTHRIE OK Sept 1977 -- Shadows are getting long as Santa Fe U33C 8524 crosses the Cimarron River on its southbound journey through Oklahoma. Lease power was prevalent at this time on the Santa Fe. CN and C&NW units were seen frequently.