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Mount Defiance

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Defiance is futile! This peak and its stunning views will amaze you. The long ridge spine to the north of the South Fork Snoqualmie River (the I-90 corridor) offers some of the steepest hiking trails in the Cascades, but also some of the best views. Mount Defiance gives you both, and lakeside rest areas make the thigh-burning climb well worth the effort. Plan your trip when the atmosphere is clear (right after or a few days before a storm--look for barometric pressure changes to clue in to weather changes). With clear skies and clean air around you, views will stretch across the breadth of Washington - from Mount Baker near the Canadian border to Mount Adams (and very faintly, Mount Hood) near the Columbia River and the -Oregon border.

Start climbing the Ira Spring Trail, following it as it ascends the old logging road and then the true trail toward Mason Lake. At about 2.7 miles, as you skirt above the shore of Mason Lake, turn left at a trail fork. Right leads down alongside Mason Lake and on toward Rainbow and Pratt Lakes.

This left-hand path climbs for 2 miles, running through forest and open slopes to an elevation of 5240 feet. You'll find yourself in a broad meadow packed with wildflowers and views. Those with no desire or skill to scramble can enjoy this wonderful wilderness garden, but those looking for a little more can push on.

A rough path runs steeply up the ridge to the summit of Mount Defiance at 5584 feet. From here, the views are as good as you'll find anywhere. Due north look for the snow-capped cone of Mount Baker and to its right and a little closer in, Glacier Peak. Turn and face west to see the South Fork Snoqualmie Valley running down into the Puget Sound lowlands and, beyond, the sawtooth ridges of the Olympic Mountains. Face south and enjoy the massive mountain that is Rainier and behind it, Mount Adams. To the west of these you might see the abbreviated summit of Mount St. Helens, and in the gap between Adams and St. Helens, look for the faint outline of Mount Hood (count yourself lucky if you see it). Finally, look east and take in the long ridge to Bandera and Pratt Mountains.
Driving Directions:

From Seattle drive east on I-90 to exit 45 (Forest Road 9030). Drive north, then stay left on FR 9030. About 1 mile from the freeway, you'll encounter a fork. Stay left again, now on Mason Lake Road (FR 9031). At about 3.9 miles from the freeway, park where the road is blocked--the road continues on the other side, but only for foot traffic.

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Recent Trip Reports

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There are 196 trip reports for this hike. See all trip reports for this hike.
Mount Defiance, Thompson Lake — Oct 21, 2012 — firebeard
Day hike
Features: Fall foliage
Issues: Overgrown | Water on trail | Snow on trail
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Decided to hike up to Mount Defiance Sunday afternoon via the Thompson lake trail. Trail-head is off...
Decided to hike up to Mount Defiance Sunday afternoon via the Thompson lake trail. Trail-head is off the middle fork road about 1/4 mile past the mail box peak trail-head. There will be a blue gate blocking off vehicle access to a logging road. The logging road is in the process of being turned into a trail, seems silly. The trail starts turning to snow covered trail at the junction of granite lakes and Thompson lake trails. Continued on to Thompson lake where the snow accumulation continued to increase. Once down and out of Thompson lake we peaked the ridge which you follow the rest of the way to the top of Mount Defiance. Close to a foot of snow in places. Easy trail to follow still. Brought two big dogs who had a blast. Great weather intermittent clouds and brief snow showers. Still some gorgeous fall colors that look great in addition to the new snow fall. Best time of year, all the fair weather hikers are out and winter is amongst us. Only saw 4 hikers the whole trip and that was in the first 2 miles of the hike. Looking for solitude on this I-90 corridor you will get it here.
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Mount Defiance — Oct 07, 2012 — ryanjg11
Day hike
Features: Fall foliage
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Great day for a hike, about 60-70 degrees and not a cloud in the sky. (Okay, maybe just a few.) Also...
Great day for a hike, about 60-70 degrees and not a cloud in the sky. (Okay, maybe just a few.) Also: no bugs! Like, not a single bug! It was great. I actually planned to hike Bandera Mountain but ended up taking a wrong turn at the junction on Ira Spring Trail. No worries, because Mason Lake and Mt. Defiance were just as incredible. The trail conditions are excellent, with Ira Spring being very wide (good thing too, as there was a lot of traffic this afternoon). Once you pass Mason Lake, the path becomes more narrow and steep, but never brutally difficult. The meadows near the top were amazing, with fall foliage in full effect and visibility excellent. Got started around 2:00pm and it took me about 2:30 hours to reach the top, going at a brisk pace with virtually no stops. Enjoyed the view at the top for about half an hour, then about 1:30 back down. Fun hike, I will do it again, Bandera next time.
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Mount Defiance, Ira Spring Trail - Mason Lake — Oct 05, 2012 — knutpicaso
Day hike
Features: Fall foliage
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Great day for a hike. The skies were very hazey from the Eastern Washington fires. Started the hike ...
Great day for a hike. The skies were very hazey from the Eastern Washington fires. Started the hike at about 11:45am and the parkiing lot was not close to being full. The trail crew has made vast improvment since my last hike in July. The trail to Mason Lake is better than it has ever been. The fall colors are showing and the beatiful flowers in July are gone. The hike was not as difficult as I thought. This was my first trip to Mt Defiance and there is a mild scramble to the top. If you can make it to the open south face the last 1/4 mile will be a breeze. It was very hazey at the top restricting views. Met a nice couple going to Mt Defiance whom were helpful with directions and took pictures at the summit. I would like to thank them for their concern when I did not make it to my vehicle as we left the summit at the same time (they left a note on my car). I took a wrong turn and ended up at Island Lake and had to backtrack to the main trail. It took about3 hours to the top with a 15 munute break. Total hike with the side trip was 6 hours
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Mount Defiance — Sep 30, 2012 — seanhikes
Day hike
Features: Wildflowers blooming | Fall foliage
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What a great day to be outside! I started early around 9:30am and beat most of the crowds. The folks...
What a great day to be outside! I started early around 9:30am and beat most of the crowds. The folks on the trail I encountered were great and trail happy. The views hit the spot today, Mount Rainier was rising and once you pass Mason Lake and got out of the trees just before the summit of Defiance. No issues on the trail. I got back to the trail head around 1:30pm. All in all the colors where great, plus I was scouting Russian Butte and Thompson lake for the future.

-Sean
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Mount Defiance — Sep 03, 2012 — Rachel P
Day hike
Features: Wildflowers blooming
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Perfect day for a perfect hike! Yes, you work for it, but you get rewards all along the way. Only th...
Perfect day for a perfect hike! Yes, you work for it, but you get rewards all along the way. Only the first mile or so is less interesting, but after that you have the dual benefits of frequent shade and frequent views across the I-90 valley, with Rainier rising continually above the intervening hills. As a result there's road roar much of the way, but it gets quieter, and I was willing to put up with that.

The last section was definitely short of a scramble so although I took it slow in both directions and was glad of my poles, it didn't scare me. The trail is in great condition. It was dusty this late in the season, but other than that nothing to complain about. We had cool air, brilliant sunshine, and no bugs to speak of.

I'm not so much for lakes, but Mason Lake was charming, especially on the way down with the afternoon sunshine hitting it. We accidentally went to Island Lake too which was sweet, though at the time I was a little alarmed because we'd taken a wrong turn and were expecting Mason Lake!

Somehow we missed the way at the turn to Pratt & Island Lakes, which is really obvious on the way up, but evidently less so to us on the way down. On the way up, we and some other hikers found ourselves turning away from Mason Lake too early; apparently that goes to Little Mason Lake via a wet meadow. Keep going along the lake - the path to Mt D is not going to make you wonder whether you're going the right way.

Pictures: http://www.flickr.com/[…]/
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Mt Defiance Norm.jpg
Mt Defiance Summit photo by Norm
Location
Mount Defiance (#1009)
Snoqualmie Pass -- Snoqualmie Pass
Mount Baker-Snoqualmie National Forest, Snoqualmie Ranger District, North Bend Office
Statistics
Roundtrip 11.0 miles
Elevation Gain 3384 ft
Highest Point 5584 ft
Features
Lakes
Wildflowers/Meadows
Mountain views
Summits
User info
Northwest Forest Pass required
Guidebooks & Maps
Day Hiking: Snoqualmie Pass (Nelson & Bauer - Mountaineers Books)
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 MarkerMount Defiance
47.4257166667 -121.584283333
(47.4257, -121.5843) Open in new window
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