Between 1890 and 1940, five dams were built in the vicinity of Great Falls to generate power from the Great Falls of the Missouri, a chain of giant waterfalls formed by the river in its path through western Montana.
Entre 1890 y 1940 se construyeron cinco presas en las cercanías de Great Falls (MT) para generar energía a partir de las Great Falls of the Missouri, una cadena de gigantes cascadas formadas por el río a su paso por el oeste de Montana.