Plummer Peak, Mountain summit in Mount Rainier National Park, United States

Plummer Peak is a 6,374-foot summit in the Tatoosh Range, within Mount Rainier National Park in Lewis County, Washington. It is the seventh-highest peak in the range, and a col called The Saddle links it to neighboring Pinnacle Peak.

The peak was named after Fred G. Plummer, a Forest Service cartographer who also taught geography at Tacoma Public Schools. His work mapping the Cascade region contributed to early documentation of the area.

From the summit, hikers see Mount Rainier, Mount St. Helens, Mount Adams, the town of Packwood and the Goat Rocks, a volcanic area of the Cascade Range. The name Goat Rocks refers to mountain goats and to the rocky ridges of that wilderness, not to a desert.

The summit is reached by a route combining hillwalking and scrambling, and The Saddle gives a walkable ridge link to Pinnacle Peak. Avalanches are a hazard; in 1988 skier Pamela Benton Lee died after being buried on Plummer Peak. A small tarn lies on the side of the summit.

Plummer Peak is the seventh-highest summit of the Tatoosh Range, and its name honours Fred G. Plummer, a Forest Service cartographer who taught geography in Tacoma public schools. Skiers use its slopes, but avalanches are a hazard: in 1988 skier Pamela Benton Lee died after being buried by one here.