This is a book documenting the "SL Aso Boy," a sightseeing train pulled by steam locomotive No. 58654. Locomotive: No. 58654 of the 8620 series steam locomotive, affectionately known as "Hachiroku," was the oldest active SL in Japan. Operating Route: Primarily operated on the Hohi Main Line between Kumamoto Station and Miyaji Station (commonly known as "Tateno-goe"), challenging one of Kyushu's steepest gradients. Operating Period: Operated for 17 years, from its revival in 1988 to its retirement in 2005. "SL Aso Boy" is a valuable book containing the records of the steam locomotive over those 17 years. Thank you for viewing.