Union Pacific Railroad Company Rolling Stock Photographic Roster
Reporting Marks: UP
XL: Loader Equipped. Box car similar in design to "XM", with steel perforated side walls or equipped with interior side rails for securement of certain types of lading and/or permanently attached movable bulkheads.
Equipped Box Car, Inside Length: 69' to 79', cushion draft gear/underframe, Plug door, opening greater than 11 feet