U.S. Route 66 U.S. Route 66 U.S. Route 66 (US 66 or Route 66), also known as the Will Rogers Highway, the Main Street of America or the Mother Road, was one of the original highways in the U.S. Highway System. US 66 was established on November 11, 1926, with road signs erected the following year. The highway, which became one of the most famous roads in the United States, originally ran from Chicago, Illinois, through Missouri, Kansas, Oklahoma, Texas, New Mexico, and Arizona before ending in Santa Monica, California, near Los Angeles, covering a total of . It was recognized in popular
South Los Angeles within the city limits of Los Angeles as well as unincorporated areas in the southern portion of the County of Los Angeles. Thus, depending on the source, the specific boundary of South Los Angeles can differ. The City of Los Angeles delineates South Los Angeles as an area of 15.5 square miles. Adjacent neighborhoods include West Adams, Baldwin Hills, and Leimert Park to the west and the Southeast Los Angeles region of the city (the 26-neighborhood area east of the Harbor Freeway) on the east. According to the "Los Angeles Times Mapping Project", South Los Angeles comprises 51 square miles,