Central City/Black Hawk Historic District and funds as a result. Central City/Black Hawk Historic District The Central City/Black Hawk Historic District is a National Historic Landmark District that encompasses Central City and Black Hawk, Colorado. They are adjacent former gold mining camps in the Front Range of the Rocky Mountains in Gilpin County, Colorado, United States. For a time, the area was known as the Richest Square Mile on Earth. The district was designated a National Historic Landmark on July 4, 1961. On May 5, 1859, John H. Gregory discovered a rich deposit of gold in hard rock, the first such discovery in the Rocky
Mile End tube station Mile End tube station Mile End is a London Underground station in Mile End, East End of London. It is served by the Hammersmith & City, District and Central lines. This station features a cross-platform interchange in both directions, with the Central line's tracks to the outside of the District and Hammersmith & City lines' tracks. It is in Travelcard Zone 2. The station was opened in 1902 by the Whitechapel & Bow Railway (W&BR). Electrified services started in 1905. The first services were provided by the District Railway (now the District line); the Metropolitan line followed in 1936 (In