Walnut Grove, Minnesota, owes its establishment to the railroad. In 1872, the Winona and St. Peter Railroad extended its tracks westward, reaching the Redwood River area. This spurred development, drawing settlers seeking opportunities in the newly accessible region. A townsite emerged, strategically placed to serve the agricultural community and facilitate trade enabled by the railroad.
The arrival of the railroad and the subsequent founding of the town marked a pivotal moment in the history of southwestern Minnesota. It transformed the landscape from primarily Native American Dakota land to a burgeoning agricultural center. This development provided vital access to markets for farmers and facilitated the growth of businesses and community infrastructure. The establishment of the townsite represents a significant chapter in the westward expansion of the United States and the development of its transportation networks.