The city became an industrial center with abundant water power from the Clinton River and Paint Creek. The interconnected waterways are no longer used for travel or local industry, but provide natural beauty, some fishing, and a healthy portion of the Clinton Watershed. Historically, past industries formerly located in Rochester included a refinery for sugar beets, a paper products company, and the Western Knitting Mills factory, which was later adapted and utilized during World War II for incendiary production—businesses that no longer exist in the area. Rochester was served by two railroads as well as the Detroit United Railway, an interurban to Royal Oak and Detroit.