Ophir is a home rule municipality town governed by a general assembly and is located in San Miguel County, Colorado, United States. It is located two miles from the Ames Hydroelectric Generating Plant, the world's first hydroelectric plant to supply alternating current electricity for an industrial purpose (mining). The population was 197 at the 2020 census.
The Ames Hydroelectric Generating Plant, constructed in 1890 near Ophir, Colorado, was one of the first commercial system to produce and transmit alternating current (AC) electricity for industrial use and one of the first AC hydro-electric plants ever constructed. It became operational in 1891 and was built by Westinghouse Electric around two of their large alternators. One was set up in the valley as a generator and driven by water. It was connected by a 2.6-mile (4.2 km) transmission line to the second alternator used as a motor up at the Gold King Mine to drive the mining operation. The facility has been changed and upgraded over the years but is still in operation. It is now on the List of IEEE Milestones.
Alder is an extinct town located in Saguache County, Colorado, United States.
Alpine is a small community, sometimes considered a ghost town, in Chaffee County, Colorado, United States. It was founded as a mining town. The Alpine post office operated from October 26, 1874, until June 30, 1904.
Altman is an extinct mining town located in Teller County, Colorado, United States. The Altman post office operated from January 18, 1894, until May 30, 1911. Much of the town was destroyed by fire on May 24, 1903.
Adena is an extinct town located in Morgan County, Colorado, United States. The townsite is located at 40.0083°N 103.8866°W at an elevation of 4,692 feet (1,430 m).
Axial is an extinct coal mining town located in Moffat County, Colorado, United States. The townsite is located at 40.2852°N 107.7919°W at an elevation of 6,454 feet (1,967 m).
Beshoar is an extinct town located in Las Animas County, Colorado, United States. The townsite is located at 37.2181°N 104.4066°W at an elevation of 5,922 feet (1,805 m).
Bloom is an extinct town located in Otero County, Colorado, United States. The townsite is located at 37.6875°N 103.9566°W at an elevation of 4,800 feet (1,500 m).
Bowen is an extinct town located in Las Animas County, Colorado, United States.
Delcarbon is an extinct town in Huerfano County, Colorado, United States.
Fondis is an unincorporated community in Elbert County, in the U.S. state of Colorado.
Haybro,, is an extinct town in Routt County, Colorado, United States.
Iola is an extinct town located in Gunnison County, Colorado, United States.. The community was inundated and destroyed by the creation of Blue Mesa Reservoir.
Eastdale is an extinct town in Costilla County, in the U.S. state of Colorado.
Bijou Basin is an extinct town located in El Paso County, Colorado, United States. The townsite is located at 39.1356°N 104.4569°W at an elevation of 6,398 feet (1,950 m). Travelers could take post road 49 to the settlement. It was located five miles southeast of another early settlement, Sidney.
Gwillimsville was a settlement at the head of Cherry Creek and six miles east of Monument in northern El Paso County, Colorado. Its settlers were engaged in dairy, ranching, and timber businesses. The Gwillimsville post office operated from April 18, 1878, until September 25, 1890.
Husted is an extinct town located in El Paso County, Colorado, United States. Husted was a settlement on the Denver and Rio Grande Railroad and located thirteen miles north of Colorado Springs. Residents were involved in ranching and lumber businesses. The Husted post office operated from October 1, 1878, until October 15 1920.
Adelaide is an extinct mining town located in Lake County, Colorado, United States. The site of the former town is located about one mile west of downtown Leadville through Stray Horse Gulch and two-thirds of a mile north of Nugget Gulch.
United States 
Colorado 
