|Best months for climbing:||Jul, Aug, Sep|
|Nearest major airport:||Seattle-Tacoma|
|Convenient Center:||Enumclaw, Yakima|
Thanks to Ronald James for adding this peak.
Dewey Peak is the unofficial name given to the prominent peak located about two miles southeast of Chinook Pass, along the boundary of Mount Rainier National Park and the William O. Douglas Wilderness. It's situated immediately south and 1600 feet elevation above Dewey Lake, with Tahtlum Peak immediately on the opposite (north) side of the lake. Dewey Peak is directly on the spine of the Cascade crest, as well as the Pierce/Yakima county line.
Dewey Peak is connected to Seymour Peak (to the west) by a high ridge. Approach can be made from Chinook Pass along the Pacific Crest Trail, or from Tipsoo Lake on the Naches Peak Loop Trail. Then follow the PCT down to popular Dewey Lake. From the lake, route-find to the Dewey-Seymour saddle, and then the ridge to the summit block. It's a dayhike and class 4 scrambling with rope preferred to rappel off the summit. Allow 5 hours for a 9 mile round trip.
From the small summit a nice panoramic view unfolds in all directions. To the west Mount Rainier dominates everything, along with all the peaks on the east side of the park from the Tatoosh Range to the Sourdough Range. To the south, Mount Adams and the Goat Rocks. To the north Crystal Mountain and Chinook Peak. The Stuart Range and Mount Aix can also be seen on clear days.
Prominence: 1390 ft.
Thanks to Ronald James for this description.