Mt Jupiter Trail 809

Olympic National Forest, Washington

Elevation Gain5,620ft
Trailhead Elevation2,049ft
Elevation Min/Max2048/5698ft
Elevation Start/End2049/2049ft

Mt Jupiter Trail 809

Mt. Jupiter Trail #809 is a hiking and horse trail in Jefferson County, Washington. It is within The Brothers Wilderness Area and Olympic National Forest. It is 6.6 miles long and begins at 2,049 feet altitude. Traveling the entire trail is 13.5 miles with a total elevation gain of 5,620 feet. The trail ends near Mount Jupiter (elevation 5,558 feet).

Mt. Jupiter Trail #809 Professional Guides

Detailed Trail Descriptions from Our Guidebooks

Day Hiking: Olympic Peninsula - 2nd Edition (The Mountaineers Books)
Craig Romano
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"This is a long, bone-dry, and at times steep trek to a former fire lookout site atop Mount Jupiter—but the views are worth the effort! Feast on them, from prominent eastern-slope Olympic peaks to Hood Canal, Mount Rainier, and a procession of Cascade peaks. Situated between Mount Constance and the Brothers, Jupiter also provides an eagle’s-eye perspective of the Duckabush and Dosewallips valleys, two of the Olympics’ great green portals into its hinterlands. Road subject to changes and closures due to logging on adjacent private lands. Road closed for wildlife management mid-Oct–May 1. Do not park in front of the gate."
Hiking Olympic National Park (Falcon Guides)
Erik Molvar
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"A 14.2-mile round-trip day hike to the summit of Mount Jupiter. This trail follows a high ridgetop into The Brothers Wilderness, arriving at an old lookout site that commands excellent views of the eastern Olympics. It is the only relatively level trek in the southeastern part of the range that visits the high country. There is no surface water along the route, so be sure to bring a plentiful supply for drinking. Along the way, hikers can look south to view remnants of the 2011 Big Hump Fire, which scarred over 1,000 acres of the Duckabush drainage. The fire was caused by wilderness campers who failed to fully extinguish a campfire."

Mt. Jupiter Trail #809 Trip Reports

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Fairly uncrowded ridge line trail, good for families. Full of rhododendrons.
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Trail is cleared of blowdowns to lake. Patchy snow remains around the wet crossing at 3900', otherwise the trail is snowfree. All campsites except one are melted out. Be prepared for a wet crossing of Lena Creek.

Mt. Jupiter Trail #809 Photos

Trail Information

Olympic National Forest
Nearby City
The Brothers Wilderness Area
Moderate to Difficult
Skill Level
Views, Wildflowers
Olympic National Park, permit required for backcountry camping
Local Contacts
USGS Mount Jupiter, Brinnon; Custom Correct The Brothers - Mount Anderson
Local Maps

Trail Log