Some of the country's most noteable architects helped create the Sweet Grass County places including Link and Haire, Barney Brannin, Gagnon & Co., F.S. Hornbeck, et al. Spannring, Jacob Halverson, Frank Larson and O.M. Lamphear. Prominent architectural styles found in Sweet Grass Country are Bungalow/Craftsman, Classical Revival and Late Gothic Revival.