HO GEN SDP45 Locomotive, GN #331

Great Northern purchased 8 SDP45’s from EMD in 1967 to help replace their tired F units. Delivered in their “Big Sky Blue” scheme, they were used in passenger service on trains such as the Empire Builder until the formation of Amtrak in 1971. They would eventually be repainted into BN colors after the merger of 1970 and used in the general freight pool until retirement in the mid 1980’s.