In 1932 Black Hawk experienced a revival of mining and tourism. Our city sent a dozen men to fight in World War II in 1918, and the population began to decline shortly thereafter. By 1899, Black Hawk’s population peaked at more than 2,000 people. Black Hawk began to flourish during the mining boom of the late 19 th century, especially after it was linked by the Colorado Central Railroad to Golden, CO and mills were constructed. Hill made the state’s first successful ore smelter, a device that recovers gold from sulfide ores and was credited with saving hard rock mining in the region. In 1868, chemistry professor and senator Nathaniel P. Today Black Hawk holds the distinction of being the least populous city in Colorado, although, at any given time, there are more guests in the hotels and casinos than residents of the city. Gregory in 1859 during the Pike’s Peak Gold Rush. The city of Black Hawk, CO, named for a famous Indian chief, was founded by John H. Take a few minutes to find out more about the history of Black Hawk, CO. Thousands of people flock here to experience all the fun and relaxation each year, but many of them don’t know about our great city. Now known for its many casinos and rock climbing opportunities, Black Hawk has an interesting history as a mining town. Black Hawk, CO has a rich history that many people aren’t aware of.