The Northern Pacific Railway was a major American railroad that connected the Midwest to the Pacific Northwest. Established in 1864, it played a crucial role in the expansion of the United States by facilitating trade and travel across vast distances. The railway's main line stretched from Lake Michigan in Chicago to Puget Sound in Washington. The construction of the Northern Pacific Railway was completed in 1883, significantly contributing to the development of cities and towns along its route. It helped settle the western territories and promoted economic growth by linking agricultural areas with markets. The railway eventually became part of the larger Burlington Northern Santa Fe Corporation.