| Hayden Smelter | |
| Location: | Ray Complex Hayden SmelterP.O. Box 8640 Asarco AvenueHayden AZUSA 85235 |
| Coordinates: | 33.0089°N -110.7831°W |
| Status: | Operating |
| Completion Date: | 1984 |
| Owner: | ASARCO |
| Building Type: | Smelter |
| Height: | 303 meters[1] |
| Website: | https://www.asarco.com/ |
Hayden Smelter is a copper smelter at Hayden, Arizona, owned and operated by ASARCO. It has a 305abbr=offNaNabbr=off tall chimney, which is the tallest free-standing structure of Arizona. It processes copper from the Ray mine.
In 2011, the Environmental Protection Agency took action against the smelter for releasing "illegal amounts of lead, arsenic and eight other dangerous compounds."[2]