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Boulder River

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A good hike any time of year, the trail is perfect for beating summer heat, enjoying winter rain, savoring autumn color, or being wooed by waterfalls that are swollen with spring rain. One thing about this trail remains constant: the trees. Whatever the season, you'll travel through a forest that has defied time. Boulder River's moss-draped giants represent one of the last remaining large, low-country old-growth forests in the Cascades. Protected within the nearly 49,000-acre Boulder River Wilderness, these ancient trees are as impressive as the wild river they embrace.

Start in an old cut on a logging railroad grade. Don't despair, though, virgin forest appears soon enough. Crashing Boulder Falls can be heard through the dense forest and becomes fully visible just ahead. At about 1 mile pass the wilderness boundary, and soon afterward encounter a spectacular yet unnamed twin waterfall tumbling down the canyon walls into the river. This is a good turnaround spot for young children and hikers who just want a quick wilderness dose.

For those intent on carrying on, the trail continues up the moisture-laden emerald valley. While the river's incessant gurgling and belching is continuously heard along the way, the raucous waterway is often hidden from sight. Farther upstream the trail pulls a little ways from the river, climbing a couple hundred feet above it. At 4 miles the trail heads back down to the wild waterway, terminating at a damp riverside flat (elev. 1450 ft). Grab the granola and let the river serenade you with its timeless ballads.
Driving Directions:

Take exit 208 off of I-5 and drive 4 miles east on State Route 530 to Arlington, and then continue east on SR 530 for 20 more miles. At milepost 41, near a subdivision, turn right onto Forest Road 2010 (French Creek Road) and continue for 3.7 miles to the trailhead (elev. 950 ft). Privy available at the Washington State Department of Natural Resources campground 2.8 miles east.

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Recent Trip Reports

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There are 291 trip reports for this hike. See all trip reports for this hike.
Boulder River #734 — Jan 01, 2004 — Tim King
Day hike
Issues: Blowdowns | Snow on trail
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This trail was pretty intense. We were hiking through anywhere from 6"" to 2 feet of snow. Its not ...

This trail was pretty intense. We were hiking through anywhere from 6"" to 2 feet of snow. Its not maintained very well at all with a giant fallen tree over the trail we had to climb over, and countless other trees and branches we either had to go over, under, or around. We did not find the camp sites by the river, we think we accidentally started going on the old abandond trail, and ended up just camping at a clearing on the trail at about 5 miles in. In that deep of snow its hard to know exactly where the right trail is. But it was an adventure and the winter scenery was great.

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Boulder River #734 — Dec 13, 2003 — Ted N.
Day hike
Issues: Blowdowns | Clogged drainage | Mudholes | Water on trail
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Clear trail, snow & fallen tree free for first two miles in. First signficant blow down is a huge a...

Clear trail, snow & fallen tree free for first two miles in. First signficant blow down is a huge acient growth cedar. Hump over the tree if you can, it is too narrow to go under. Be careful not to loose your grip or balance - straight to the river for you if you do. Many blowdowns from here on too. A lot of water on the trail, mud, and minor slides all the way to trails end.

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Boulder River #734 — Sep 27, 2003 — Scoutmaster Troop19
Day hike
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Backpacked 4.0 miles to the campsites. The trail fizzles out fifty to an hundred yards further alon...

Backpacked 4.0 miles to the campsites. The trail fizzles out fifty to an hundred yards further along. A couple of the log brdges were crushed by fallen trees but easily passable. They will be slippery when wet though in the weeks to come. I counted five nice and separate camp sites large enough for one to three tents. Small swimming hole there too,about 5-6 feet deep with no swift currents...very cool! No bugs at all

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Boulder River #734 — May 31, 2003 — Yameuh17
Day hike
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Good early season hike with a gradual obstacle-free trail. The forest and river are quite nice this...

Good early season hike with a gradual obstacle-free trail. The forest and river are quite nice this time of year. The no name falls are quite a treat with easy river-side access via a small spur trail. The trail is in pretty good shape, with some blowdowns and mud, all quite passable.

Stayed overnight at the ford, where the trail ends at 4.5 miles. There were alot of established sites along the river, each fairly private. I'm a bit disappointed with the fellow hikers who have been careless with their trash, especially around the ""main"" campsite. The firepit was full of unburned trash, and bits and pieces were strewn here and there about the site. The adjacent forest was speckled with unburied/unburned tissue paper, delightful! Pack in, pack out folks!

Being early we had pick of sites, three day hike parties came by (two with dogs), and one overnighter. There is some exploration available, hopping river side or bushwhacking through forest. Since the trail is fallen to disuse across the ford to Tupso Pass, it might be nice to extend the trail to a different destination.

Passed four parties on the way out, two with dogs.

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Boulder River #734 — Apr 19, 2003 — Otter and Marmot
Day hike
Issues: Blowdowns | Bugs
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We were in need of a quick overnighter... We hit the trailhead at about 11:00 on Saturday and foun...

We were in need of a quick overnighter...

We hit the trailhead at about 11:00 on Saturday and found the parking area near capacity. We pulled on boots and packs, signed in on the sopping wet pages of the trail register and at about 11:30 began what should be an easy four and a half mile hike to the campsites at the river ford.

The weather was a cloudy and cool. But that just makes for nice hiking. At about one mile from the trailhead, the trail crosses a small saddle and cuts east along the south slope of the ridge above Boulder River. There's a large camp site at the saddle, occupied by a scout troop. Just beyond the camp, the trail enters the Boulder River Wilderness. From this point, we no longer see clearcuts on the hillsides around, just the plantlife and the river below to our right. The trees were mostly cedars and hemlock. Trilliums and dog tooth violets were in bloom along the trail, along with the salmon berries.

The trail is mostly forested with some openings with views of the river with its tumbling rapids and deep pools. Also along the south bank were waterfalls dropping into the river. Truly a beautiful sight!

The trail is crossed by several streams, some small enough to step across, some in deeper ravines requiring a bridge. Most of the bridges were fine, but one puncheon bridge was obliterated by a fallen tree (imagine a log three or four feet in diameter broken in two like a matchstick by another tree!). Another puncheon bridge (near the end of the trail) was shaky, and the posts for the (missing) wire ""handrail"" were broken off. There is a path down into the ravine and up the other side. Going to camp, we opted for the ravine route, as the bridge was looking really slick.

Along with the two bridge problems, there were 11 instances of blowdown we considered major (either had to detour off trail to cross, belly crawl under or over). One of section covered 30 to 40 feet of trail.

Blowdown and bridges behind us, we reached the campsites at the old river ford. There used to be a trail (still shown on some maps) from the south bank of the river to a pass on the south side, but the trail is gone now, and no indication of where it comes to the river bank.

We picked a nice site right on the bank. There were nice views of Mt. Bullon from our campsite and other areas along the bank.

I awoke the next morning to the yellow in the canopy of our tent glowing. Could it be? Sun? THIS weekend, when it was supposed to be raining? Sure enough, blue sky and sun! We lingered.

We made our way out the trail somewhat reluctantly, but we were feeling good for the night out. On the way back, we braved the wobbly, ""handrail""-less puncheon. It wasn't too bad, but I think in the future, I'd use the ravine trail.

We passed lots of hikers out for dayhikes, many with dogs. Be took a lunch break at the saddle. In looking down at the campsite, there is a large square out of logs, kind of like someone at one time had built, or started to build, a cabin there. With many of the stumps in the area having been notched for springboards, it's possible that someone had built a cabin there once.

We did see lots of mosquitos. Larger and slower than we're used to. That made it nice for killing them before they got to us. We saw two different kinds of hummingbirds (enjoying the salmonberry blossoms) and a cicada as well!

Over all a wonderful way to spend the weekend!

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Boulder River by Bama Rose.jpg
Boulder River waterfall by Bama Rose.
WTA worked here!
2011
Location
Boulder River (#734)
North Cascades -- West Slope
Mount Baker-Snoqualmie National Forest, Darrington Ranger District
Statistics
Roundtrip 8.6 miles
Elevation Gain 700 ft
Highest Point 1550 ft
Features
Rivers
Waterfalls
Old growth
User info
Good for kids
Dogs allowed on leash
Guidebooks & Maps
Day Hiking: North Cascades (Romano - Mountaineers Books)
100 Hikes in Washington's Glacier Peak Region (Spring and Manning - Mountaineers Books)
Green Trails Oso No. 77
Granite Falls No. 109

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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 MarkerBoulder River
48.2508833333 -121.817183333
  • Trail Work 2011
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