Wood-burning locomotives of the narrow-gauge Utah and Northern Railway once ran through this canyon. Construction, undertaken by a Mormon Co-op, came northward from a junction with the transcontinental line but stopped in 1874 at Franklin on the Utah-Idaho border. Jay Gould, famous financier of the Union Pacific, took over in 1877; trains were passing here the next summer, and the rails reached Montana in 1880. New life for east Idaho followed the shrieking whistles of those little Utah and Northern trains.