3-bay covered hoppers with elongated hatches are mineral brown
with white lettering and run on Barber Roller Bearing trucks.
Built in the mid-1970s as part of series 313800-315199, these
ATSF covered hoppers carry the ATSF Q logo. This
marking indicates the ATSF Managing Total Quality
program which existed from the 1980s until just prior to the
merger with Burlington Northern.