The City of Idaho Springs is the Statutory City that is the most populous municipality in Clear Creek County, Colorado, United States. Idaho Springs is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area. As of the 2010 census it had a population of 1,717. Idaho Springs is located in Clear Creek Canyon, in the mountains upstream from Golden, some 30 miles (50 km) west of Denver. Founded 162 years ago in 1859 by prospectors during the early days of the Pike's Peak Gold Rush, the town was at the center of the region's mining district throughout the late nineteenth century. The Argo Tunnel drained and provided access to many lodes of ore between Idaho Springs and Central City. During the late twentieth century, the town evolved into a tourist center along U.S. Highway 6 and U.S. Highway 40, which ascend Clear Creek Canyon through the historic mining district. The town today is squeezed along the north side of Interstate 70, with a historical downtown in the central portion, a strip of tourist-related businesses on its eastern end, and mostly residences on its western end. It also serves as a bedroom community for workers at the Loveland Ski Area farther up the canyon. The town today is the largest community in Clear Creek County, but, for historical reasons, the county seat has remained at Georgetown.

Grand County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 15,717. The county seat is Hot Sulphur Springs.

Colorado’s beauty stirs a thirst to get out and enjoy every moment. In the summer, "Come to Life" hiking in Colorado’s dense backcountry, paddling canyon-carving rivers, grinning next to a wildflower-lined waterfall or wrangling a feisty rainbow trout.

For people with the surname, see Silverthorne (surname). Silverthorne is the second most populous town in Summit County, Colorado. According to the 2010 Census, the population of the city is 3,887. It is a home rule municipality.