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Mailbox Peak

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Wimpy hikers, turn the page. This trail offers nothing for you but pain and heartbreak. If you think you've got the goods to scramble up more than 1000 feet per mile, read on. Mailbox Peak brings a serious burn to the thighs of even the best-conditioned athletes, but the rewards make it all worthwhile. From the top of this jutting lump of rock, you'll enjoy spectacular views of the lower Snoqualmie River valleys. The entire Issaquah Alps range sprawls at your feet, with the rocky-topped Mount Si directly across the Middle Fork Valley and the sheer wall of Rattlesnake Ledge just across the South Fork Valley. After soaking in the views, pull the summit register out and leave your signature--you'll find the tattered pages of a notebook in an old metal mailbox wedged above the summit rocks.

Start hiking by rounding the gate and walking up the road (avoiding all side roads). At around 0.5 mile from your car, watch for a sign on the left marking the Mailbox Peak Trail. This trail is rough-hewn, since it was built by boots and only recently received any real trail work--and that done mostly by ad hoc volunteers.

The trail leaves the road and turns near vertical, climbing ever-more steeply over the next 2.5 miles--the first 0.5 mile of road walking gains only a few hundred feet of elevation, leaving about 3800 feet for the last 2.5 miles. That means you'll be climbing about 1500 feet per mile, and most hikers consider anything over 1000 feet per mile to be steep!

The first mile of climbing makes use of a few switchbacks--though a few more would moderate the pitch more reasonably. From there on, turns and twists become fewer and farther between. The trail climbs with ruthless focus--to get to the top in as direct a line as possible. As you move above 4000 feet, the forest falls away, the views open, and all pretense of switchbacks disappears. You'll now be scrambling up steep, open hillsides. An old forest fire scoured the slope here, removing the tree cover but making space for a wonderful mix of heather, beargrass, and dense huckleberry thickets.

Finally, after one last scramble through the rocky crown around the summit, you're there, standing beside the battered mailbox on the top of Mailbox Peak. After you catch your breath, pat yourself on the back--because if you're on the summit, you've conquered per-haps the most difficult hike in this book!
Driving Directions:

From Seattle, drive east on I-90 to exit 34 (Edgewick Road). Turn left (north) onto 468th Street and follow it to the junction with the Middle Fork Snoqualmie Road (Forest Road 56). Turn right and continue up the Middle Fork Snoqualmie Road to the end of the pavement (about 3 miles from the I-90 exit). Turn right onto a gated road and park, being sure not to block the gate.

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Recent Trip Reports

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There are 519 trip reports for this hike. See all trip reports for this hike.
Mailbox Peak — Apr 22, 2013 — rdroberts7
Day hike
Issues: Mudholes | Water on trail | Snow on trail
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Will, Dyla (My son's dog), and I adventured up to Mailbox Peak on Monday. We are park of a group, Cl...
Will, Dyla (My son's dog), and I adventured up to Mailbox Peak on Monday. We are park of a group, Climbers with a Purpose (CWAP), striving to summit Mount Rainer in July, raising funds for Planet Changers (clean water wells in Uganda).

The weather could not have been better - crystal clear and temps in the 40's. One encounters numerous rocks and spreading tree roots underfoot - hiking poles are needed, as well as good hiking shoes. It is a challenging uphill trail, and we encountered muddy sections, before reaching he snow level at 3800 ft, requiring us to stop and get the MicroSpikes on. Of course, Dyla has "all paw" drive and had no issues with the climb. The climb was challenging, but if you are experienced and in good shape, it is definitely achievable.

The views on the way up and at the top are breathtaking. Rainier stands out in her splendor, and the other mountain ranges are truly amazing from this height.

The trip down was a different story. Even with traction devices, one would slip on the slushy base under the top snow level, from snow melt and hikers on the trail. The mud below the snow level and the wet tree roots also made traction difficult. Then there was the pounding on your knees on the steep declines...

We enjoyed the hike to the top and the wonderful views, but the trip down was difficult, and our knees are still sore. Of course a few slips and strains on the knees did not help them. Even Dyla was tired when we got down - she could not wait to get home and take her nap!

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Mailbox Peak — Apr 16, 2013 — hiljoy
Day hike
Issues: Mudholes | Snow on trail
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Trail was wet and slick, with snow after the first mile. Increasing snow at 4,000 feet. Clear views ...
Trail was wet and slick, with snow after the first mile. Increasing snow at 4,000 feet. Clear views at the summit quickly obscured by a snow front. Treacherous decent. Poles are a must; clampons advised.
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Mailbox Peak — Apr 14, 2013 — Alex's Dad
Day hike
Features: Wildflowers blooming
Issues: Water on trail | Snow on trail
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Intermittent but deep blue skies - surprised the parking lot wasn't full. Snow starts about 1700', ...
Intermittent but deep blue skies - surprised the parking lot wasn't full. Snow starts about 1700', becoming soft and deep. Many snow bombs from the trees, turning into slush-bombs in the afternoon, helping to make the trail very slick even without ice. The peak only has about a foot of snow, leaving the mailbox completely exposed. Views were limited by many low clouds even though the peak itself was not enshrouded.

Increasing signs of spring at the trailhead - pure white trillium are out, and plenty of winter wren song.
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Mailbox Peak — Apr 06, 2013 — packy
Day hike
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The ascent is pretty quick and a consistent sustained angle to the top. It's full of roots but there...
The ascent is pretty quick and a consistent sustained angle to the top. It's full of roots but there are plenty of foot placement steps all the way up through the woods. The trail was damp with some puddles but, wearing stiff sole sneakers will get you to the top without fail. There was snow and some minor icy patches but footing was fine due to previous climbs (steps kicked). I climbed light and quick with minimal gear in spite of wind blown snow up high. You don't need a gortex jacket and pants for crying out loud - just make sure you have a warm layer for up high and a rain jacket to stay dry. Poles are a must have on this hike and no need to bring an axe (that's border line ridiculous). Bring a hat in case it gets chilly. The down climb is the hard part - tough on the legs and joints but, it goes fast. Anyone who is in good shape can handle this hike - it is not brutal. Mt.Si is less steep but is a longer go - in my opinion the two hikes are not so far apart in terms of a work out.
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Mailbox Peak — Mar 31, 2013 — Trystan
Day hike
Issues: Water on trail | Snow on trail | Bugs
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Snow free for the first 2/3 or so of the hike. Then ice and snow mix with deeper snow in some sectio...
Snow free for the first 2/3 or so of the hike. Then ice and snow mix with deeper snow in some sections. Microspikes and treking poles should be considered minimal equipment until further into Spring. I was glad to have my crampons and even an ice axe was handy for one steep section of snow (although not required).

Although it was a gorgeous, near optimal weather day I saw at least one party turn back as they had no traction devices or poles and could not make safe progress. Also be aware of the potential temperature differences between the trail-head and summit. Saw too many people going up in shorts and a cotton t-shirt. This is a challenging hike. Save search and rescue a call by treating it as such.
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Mailbox_19A.JPG
The Mailbox at the summit by Jesse Wise
WTA worked here!
2012
Location
Snoqualmie Pass -- North Bend Area
Mt. Baker - Snoqualmie National Forest - Snoqualmie District
Statistics
Roundtrip 6.0 miles
Elevation Gain 4100 ft
Highest Point 4926 ft
Features
Rivers
Old growth
Mountain views
Summits
Wildlife
User info
Discover Pass required
Guidebooks & Maps
Green Trails Bandera No. 206

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Note: the description and driving directions for this Mountaineers Books entry are copyrighted and can't be changed.

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Red MarkerMailbox Peak
47.4674166667 -121.67485
  • Trail Work 2012
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