The Elsinore Sugar Factory, in Sevier County, Utah near Elsinore, Utah, was built in 1910. It was listed on the National Register of Historic Places in 1980. Two buildings of the factory complex of the Utah-Idaho Sugar Company survive: a factory office and rooming house building, and a warehouse building. These buildings were deemed significant for association with the company, which was "the single most important agri-business in Sevier County history. The factory's economic and social impact on local communities, as assessed by a recent county wide historicalsurvey, exceeds that of any other business enterprise for the years 1911 to 1928. Also, the Elsinore plant is significant as a good representative of the overall sugar beet industry in Utah and as an excellant [sic] example of the Ut