Copper Mountain is a mountain summit located in Mount Rainier National Park in Pierce County of Washington state. Part of the Cascade Range, it is situated near the base of the Success Cleaver, overlooking Indian Henry's Hunting Ground. Its nearest neighbor is Iron Mountain to the south, and its nearest higher peak is Pyramid Peak, to the northeast. The summit provides views of Mount Rainier, Mount Adams, Mount St. Helens, and peaks of the Tatoosh Range. Precipitation runoff from Copper Mountain drains into Tahoma Creek and Fishers Horn Pipe Creek, which are both tributaries of the Nisqually River. There were great hopes in the late 1800s that mines on Mount Rainier could be a source of precious metals such as copper, silver, and gold. Its name was officially adopted in 1932 by the United States Board on Geographic Names.