The developed area within the Business District, in Warm Springs Valley, is relatively new and has the strongest concentration of industrial and commercial uses within the city. In addition, it hosts several big-box retailers, the Lake Elsinore Outlets, the lake's outlet channel, Temescal Creek, and marshlands. It is bordered by Country Club Heights to the west and Interstate 15 to the east, with a small portion extending to the east side of I-15. Sections of the Atchison, Topeka, & Santa Fe Railroads that passed through the Business District during the 1800s have been removed. In addition, a historic ranching and homesteading site with previous ranching and homesteading activities is located nearby the route where the railroad once existed.