The Colfax Railroad was a short line railroad in the United States that operated primarily in the late 19th century. It connected the town of Colfax, California to the larger Central Pacific Railroad network, facilitating the transport of goods and passengers in the Sierra Nevada region. The railroad played a crucial role in the economic development of the area, particularly during the Gold Rush era. Established in 1880, the Colfax Railroad was instrumental in linking local mining operations to broader markets. It featured steep grades and sharp curves, reflecting the challenging terrain of the Sierra Nevada. The railroad eventually ceased operations, but its legacy remains significant in the history of California's transportation.