Darrington's residents lobbied the Seattle and International Railway for the construction of a branch line from Arlington to the town as early as 1895, offering a 15-year contract to ship 75 percent of the area's extracted ores. The railroad agreed to the offer and began construction in 1900. It later merged with the Northern Pacific Railway, outpacing Great Northern and their plans to build a railroad to their timber holdings in the Sauk River valley. Railway crews arrived in the Darrington area by the following year and the first train arrived at the town's depot in 1901.