Ironton, ghost town in Ouray County, Colorado, United States

Ironton is a ghost town in Ouray County, Colorado, located south of Ouray in the mountains. Many old buildings still stand in the landscape, showing the layout of a former mining settlement built on relatively flat terrain.

Ironton, also formerly called Copper Glen, was settled sporadically in the 1870s and 1880s; roughly 300 structures went up in a three-week span. Its post office ran from May 2, 1883, to August 2, 1920. The narrow-gauge Silverton Railroad backed by Otto Mears reached the town in 1889, and it served as a supply staging area and transport junction with over 1,000 residents at its peak.

Ironton sits on Highway 550 between Ouray and Silverton and is accessible by regular vehicles year-round with maintained roads. The location is about 7 miles south of Ouray and allows easy exploration of the ruins and old building remains.

Milton Larson, the town's last resident, kept Ironton's existence a secret until he appeared on the July 1, 1963 episode of the TV panel show I've Got A Secret. He died in the mid-1960s. The post office had closed in 1920, and the site is now only occasionally visited by tourists.