Central City, Colorado Central City, Colorado The City of Central, commonly known as Central City, is the Home Rule Municipality in Gilpin and Clear Creek counties that is the county seat and the most populous municipality of Gilpin County, Colorado, United States. The city population was 663 at the 2010 United States Census. The city is a historic mining settlement founded in 1859 during the Pike's Peak Gold Rush and came to be known as the "Richest Square Mile on Earth". Central City and the adjacent city of Black Hawk form the federally designated Central City/Black Hawk Historic District. The city is now
History of the London Underground South London at Kennington, this opening in 1926. Although physically connected, the lines were still officially named the City Railway and Hampstead & Highgate line. The lines were to be known as the Edgware, Highgate and Morden and the Morden-Edgware until finally renamed the Northern line in 1937. Also during the 1920s the original tube gate stock was replaced with 1,460 cars of Standard Stock with air-operating sliding doors, except for the Central line where the cars were refurbished. Busy central London stations were modernised with escalators replacing lifts. Unlike other railway companies in the London area, the Met was