Prairie County, Administrative county in Montana, United States.
Prairie County is an administrative county in Montana that spans eastern grasslands with the Yellowstone River running through its southern reaches. The land features river valleys and rolling plains that connect Terry, the county seat, with surrounding rural communities.
The county was established in 1915 when the Montana Legislature combined portions of three neighboring counties into a new administrative division. This creation improved local governance and management of eastern Montana's rural areas.
German and Norwegian settlers shaped local customs that remain visible in community gatherings and family traditions throughout the county. These European roots continue to influence how residents connect with their heritage and each other.
Interstate 94 cuts through the county from east to west, providing the main route through the region and linking to broader road networks. When visiting, plan for open road travel across flat terrain and allow adequate time for getting around.
A train disaster struck at Custer Creek in 1938 when a bridge collapsed during a sudden flood, resulting in multiple casualties. This event remains a notable chapter in the region's history, underscoring the power of water in this landscape.
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