Course of the Colorado River Topock Marsh in Topock Gorge and widens into Lake Havasu, formed by Parker Dam. Lake Havasu provides recreation as well as the home of the retired U.K. London Bridge in Lake Havasu City, Arizona, now the New London Bridge. Near Parker Dam are the first two major diversions of the lower Colorado: the Colorado River Aqueduct, which travels west to Los Angeles and San Diego, California; and the Central Arizona Project, which sends water east towards Phoenix and Tucson, Arizona. The intermittent Bill Williams River joins the Colorado from the east in Lake Havasu, just above Parker Dam. The river
Lake City, Florida forts were established in the area, including Fort White on the Santa Fe River, and Fort Alligator, also called Fort Lancaster, in present-day downtown Lake City. By 1845 the last of the Seminole left the area of present-day Lake City or were forcibly removed by the US Army. In 1847 Company C of the Florida Volunteers, which was composed of Lake City members, served in the Mexican–American War. In November 1858 a railroad was completed connecting Jacksonville to Alligator, which opened the town to more commerce and passenger traffic. Alligator Town was incorporated and its name changed to Lake City