Golden is the Home Rule Municipality that is the county seat of Jefferson County, Colorado, United States.The United States Census Bureau estimates that the city population was 18,867 in 2010.
Founded during the Pike's Peak Gold Rush on 16 June 1859, the mining camp was originally named Golden City in honor of Thomas L. Golden. Golden City served as the capital of the provisional Territory of Jefferson from 1860 to 1861, and capital of the official Territory of Colorado from 1862 to 1867. In 1867, the territorial capital was moved about 12 miles (19 km) east to Denver City. In 1993 the old Golden High School building was converted into the American Mountaineering Center, making Golden a research and education hub for mountaineering. The Coors Brewery had become the largest single-site brewery in the world, its porcelain subsidiary among the foremost of its kind, and Golden became home to the National Renewable Energy Laboratory.