Chesapeake & Ohio EMD BL-2 1843, built in 1949, switches former Pere Marquette trackage in Grand Ledge, Michigan in August 1956. The C&O, with 14, rostered the largest number of these less successful predecessors of the ubiquitous GP-7. EMD produced only 59 of these distinctive 1500-horsepower units. In 1962 all 14 of the C&O's BL-2s were traded in to EMD on new GP-30s.