MARTIN UT Aug 22 1981 — Utah Railway RSD-4 302 is tied down at the engine facility. Alco built the 302 (b/n 78956) in March 1952 and delivered it on March 1952. The unit was placed into service ... (more)

MARTIN UTAH Aug 6 1981 — Utah Railway RSD-4 301 is tied down and awaiting its fate. Alco built the unit (b/n 78948) in February 1952 and delivered it on Feb 29 1952. It went into service on Mar ... (more)

Ex-Kennecott Copper Company #201. Donated in 1984, and the sole surviving Alco RSD-4 according to museum literature.