 | |
 A group of climbers ascending Cooper Spur, Mount Hood, July 19, 1894. | |
| Formation | July 19, 1894 |
|---|---|
| Founder | W. G. Steel and others |
| Founded at | Mount Hood, Oregon, US |
| Type | Non-profit mountaineering organization |
| 93-0408077 | |
| Legal status | 501(c)(3), NTEE Code C60 |
| Headquarters | Portland, Oregon |
Region | Oregon, Cascade Range |
| Products | Mazamas Bulletin |
| Website | mazamas |
The Mazamas (/məˈzɑːməz/) is a mountaineering organization based in Portland, Oregon, United States, founded in 1894.