Mazamas

Founded in 1894 on the summit of Mt. Hood, the Mazamas is a nonprofit mountaineering education organization located in Portland, Oregon. The Mazamas offer over 700 hikes and 350 climbs annually. A variety of classes and activities are offered for every skill and fitness level and are open to both members and nonmembers.

The Mazamas promotes climbing, responsible recreation, and conservation values through outdoor education, advocacy, and outreach.

For additional details see the Wikipedia page: https://en.wikipedia.org/wiki/Mazamas