The Utah & Northern Railway is a defunct railroad that was operated in the Utah Territory and later in the Idaho Territory and Montana Territory in the western United States during the 1870s and 1880s. It was the first railroad in Idaho and in Montana. The line was acquired by a Union Pacific Railroad subsidiary, the Oregon Short Line, and is today operated by the Union Pacific Railroad as the Ogden Subdivision (Ogden to McCammon, Idaho), part of the Pocatello Subdivision (McCammon to Pocatello, Idaho), and the Montana Subdivision (Pocatello to Butte, Montana). The original of the Utah Northern Railroad (later named Utah & Northern Railway) was conceived and built by the Mormons. It was a narrow gauge spur off the Union Pacific portion of the transcontinental railroad. The labor for this railroad was largely volunteer Mormon labor as the intent of the railroad was to serve the Mormon communities in the Cache Valley that had been settled almost entirely by the Mormons. It was a case of Mormons forming a company and building their own railroad because existing railroad companies showed no interest in building such a railroad. The northern half of the Cache Valley is in Idaho and, due to claims and disputes by the Shoshone and Bannock Indians, was not settled by the Mormons until after the Bear River Massacre and subsequent Fort Bridger Treaty of 1868 that forced the Shoshone and Bannock onto reservations. The original Mormon plan for the Utah Northern was to build a railroad to the communities in the Cache Valley and about into Idaho to Soda Springs, Idaho, that lies in a valley beyond called the Bear River Valley. This was by dictate of Brigham Young as he owned land in Soda Springs and believed that the Bear River Valley had potential for further Mormon settlement. The Mormons also believed they could break the monopoly that the anti-Mormon town of Corinne, Utah, had on the wagon freight business on the Montana Trail by extending the railroad into Idaho. There were tentative plans to eventually extend the Utah Northern to Montana. The road was constructed northward from the Union Pacific line at Ogden commencing construction on August 24, 1871. In three years, the largely volunteer railroad company had built of road. It reached Franklin, Idaho, across the Idaho border, in May 1874 where construction was halted. Investors had become hesitant after the panic