interpretive center. The mill was designated a state of Michigan historic site in 1967, and a historical marker is placed at this site. Phoenix Mill site The Phoenix Mill is located on the Rouge River, at 14973 Northville Road (at Edward C. Hines Drive) in Plymouth Township. It is the site of the former village of Phoenix. Phoenix was founded in 1837, and flourished only until about 1880. The mill located at this site was built in 1840 and burned in 1905. Ford purchased the site of the mill in 1919, and hired Albert Kahn to design a plant at the site. The plant was built, but the opening was delayed when the mill dam collapsed in 1921 and had to be reconstructed. The plant opened in 1922, employing exclusively women workers from Ford's Highland Park plant. The Phoenix plant was notable in that Ford paid the women workers high wages, equal to those of male workers, a rarity in the 1920s. The workers, however, were required to be single and childless, and to be properly attired in dresses, stockings and heels. At its peak 148 women were employed at the Phoenix Mill. The site originally produced generator cutouts; in 1940 the line was changed to produce voltage regulators for V8 engines. During World War II, the plant made parts for B-24 bombers. The Phoenix Mill plant closed in 1948, and Ford turned it over to the Wayne County Road Commission, who used it as a maintenance yard. The mill was designated a state of Michigan historic site in 1989. A Michigan Women's Museum was later planned for the site, but had not materialized. Flat Rock site The Flat Rock plant was built on the site of a former sawmill in Flat Rock, Michigan. Ford purchased the property in 1921 and hired Albert Kahn to design a building for the site. The plant which opened in 1923. It employed as many as 1200 people, and made all of the vehicle lamps used by Ford. The Flat Rock site closed in 1950, and the production was moved to the nearby facility in Monroe, Michigan. The site is now occupied by smaller private manufacturing companies; the surrounding land has been renovated into a park. A state of Michigan historical marker is now placed at the site. Plymouth site The Plymouth Mills site is located at 230 Wilcox in Plymouth, Michigan. A flour