The Santa Fe Southern Railway is a short line railroad in New Mexico, United States. In addition to carrying freight on occasion, it also operates as a tourist railroad called Sky Railway that carries passengers between Lamy and Santa Fe: a distance of 18.1 miles. The Santa Fe Rail Trail, a multi-use trail, parallels its route.
Reporting mark: SFSR
Locale: Santa Fe County, New Mexico
Dates of operation: 1992–present
Track gauge: 4 ft 8¹⁄₂ in (1,435 mm) standard gauge