Rounding the famed Tehachapi Loop is an Atchison Topeka & Santa Fe Railway piggyback train heading north to, most likely, Stockton CA based upon all the Bud of California refrigerated trailers, to be loaded with California produce to feed the nation. ATSF SD45 5506 (ex-ATSF 1806), Norfolk & Western GP9 815 and an ATSF FP45 are descending the Tehachapi Mountains into the state's San Joaquin Valley, which is a large reason California is the number one supplier of food for the United States. (Walong, California – September 4, 1978)