This concept album by Gerry Mulligan celebrates the steam railroad era, blending jazz with orchestral elements. It was released by A&M Records in 1974.
Mulligan composed and arranged all pieces, leading a large ensemble that included string and brass sections. The recording reflects his interest in American industrial history.
The album includes tracks like 'K-4 Pacific' and 'Grand Tour', evoking the movement and power of locomotives. It is one of Mulligan's most ambitious works.