A-B-B-A warbonnets A westbound Santa Fe piggyback train crosses Abo Arroyo on Bridge 871.7 in Abo Canyon between Scholle and Sais, New Mexico, on June 2, 1995. Bridge 871.7 is the third bridge from the east end of the canyon. For the record, the train is powered by a nice set of EMD GP60s—GP60M No. 141, GP60Bs Nos. 341 and 330, and lastly GP60M No. 145.