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.

San Miguel County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 8,072. The county seat is Telluride. The county is named for the San Miguel River.