Fairfield began as a station on the Milwaukee and is between Great Falls and Choteau and near Freezeout Lake, (from Cheney's Names on the Face of Montana, Mountain Press Publishing Company) where as many as 300,000 snow geese and 10,000 tundra swans gather in March. Fairfield serves as a trading center for the farmers of Greenfield Bench. Irrigation now assures crops, but in earlier days a dry summer made the grass scarce and the name "Freeze-out Bench" was applied to the area. "Greenfield Bench" and Fairfield are now descriptive of the hay and grain fields surrounding the town.