I found this Union Pacific Railroad freight car photo at My Link page Fallen Flags.Org, located to the right of Your computer screen at www.rr-fallenflags.org

If You feel that maybe You have "Too Many Box Cars" on Your own miniature model railroad layout, a nice diversion to all that box car overkill...would be to incorporate cars like these everyday bottom dumping hopper cars. These cars haul everything from coal to gravel.

This Union Pacific example, was photographed on August 2nd 1991 in Pocatello Idaho, by railfan photographer Dave Krunmenacker.