Mount Jupiter is located along the eastern front of the Olympic Mountain range within The Brothers Wilderness. Its forward position in the range makes Jupiter easy to pick out with the eye when seen from Seattle, as it appears as the prominent peak between Mount Constance and The Brothers. While modest in elevation, the deep forested valleys of the Duckabush River on its south footing and Dosewallips River on its north side give Mount Jupiter significant local relief. Mount Jupiter has a 7.2 mile trail to the summit which makes it a popular, albeit grueling hike without any water along the forested ridge that leads to the top while gaining nearly 4000 feet elevation from the trailhead. Jupiter Cliffs on the southwest side of the mountain provide rock climbing opportunities. Jupiter Lakes on the north side of the mountain can not be accessed by trail and require scrambling to reach. The name Jupiter was given by the Seattle Press Expedition in an effort to link the mountain with Mount Olympus and the many Greco-Roman mythological names associated with its features. Jupiter was the Roman god on Olympus, Zeus was the Greek counterpart to Jupiter.
To get to Mount Jupiter, from Highway 101 turn onto Forest Service Road 2610-010, drive 2.5 miles to turn onto 2610-011 and find the trailhead at the end of this spur road. This spur (011) is gated in winter, and sometimes in summer during periods of high fire danger. If the gate is closed, add 2.5 more miles of hiking to the 7.2 mile trail. Although the trail passes through National Forest land, a parking permit is not required because the trailhead is not within National Forest.
|Best months for climbing:||May, Jun, Jul, Aug, Sep, Oct|
|Nearest major airport:||Seattle-Tacoma|
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