Hiking Lake 22, Winter Edition

 

As the year winds down and the chill of winter sets in, there's no better way to embrace the season than hitting the trails in Washington's stunning Cascade Mountains. Lake 22, located in the Mount Baker-Snoqualmie National Forest about an hour's drive from Seattle, offers a perfect winter escape. This moderate hike, spanning roughly 5.4 miles round trip with about 1,350 feet of elevation gain, transforms dramatically in the colder months, blending lush Pacific Northwest vibes with a snowy enchantment that's straight out of a fairy tale. I recently tackled it at the end of December, and it was an unforgettable adventure. Let me take you through the journey, share some tips, and highlight why this trail shines in winter—while stressing the importance of safety.

 

Distance: 5.4–6 miles round-trip (out-and-back to the lake; add ~1 mile for the full loop around the lake in snow-free conditions)

Elevation Gain: Approximately 1,350–1,400 feet

Highest Point: 2,400 feet

Difficulty: Moderate Time: 3–5 hours, depending on pace and winter conditions (snow and ice can slow you down)

 

Geology and Geography of Lake 22

Lake 22 (officially Lake Twentytwo) is a classic example of a glacial cirque lake, also known as a tarn. Nestled on the northern shoulder of Mount Pilchuck in the Mount Baker-Snoqualmie National Forest, it sits in a dramatic amphitheater-shaped basin carved by alpine glaciers during the last Ice Age.

Thousands of years ago, small cirque glaciers formed high on the mountainside, eroding the bedrock through abrasion and plucking to create the steep headwalls and overdeepened bowl that now holds the lake. When the glaciers retreated, meltwater filled the depression, forming this pristine alpine tarn at about 2,400 feet elevation. The surrounding cliffs and the imposing north face of Mount Pilchuck create a natural amphitheater, amplifying the lake's serene and enclosed feel.

 

The area is part of the broader Cascade Range geology, shaped by tectonic activity, volcanic influences, and extensive glaciation from the Cordilleran Ice Sheet's Puget Lobe. This glacial history left behind the lush old-growth forests, wetlands, and dramatic topography that make the hike so varied—from rainforest lowlands to subalpine meadows and snowy heights.

In 1947, the 790-acre Lake Twentytwo Research Natural Area was established to protect this unique ecosystem, preserving the ancient cedars, hemlocks, and wetland habitats for study and enjoyment. It's a perfect snapshot of how glaciers sculpted Washington's iconic mountain landscapes.

The Trailhead: A Gentle Start in the Greens

We kicked off our hike from the well-marked trailhead along the Mountain Loop Highway, where a Northwest Forest Pass is required (day passes are $5, or grab an annual one for $30). At the lower elevations, there was little to no snow blanketing the path—just the classic PNW lushness. Towering evergreens dripped with moss, and the forest floor was alive with ferns and undergrowth in vibrant shades of green. What stood out most was the abundance of running water: small streams cascaded across the trail in multiple spots, creating mini-waterfalls and a soothing soundtrack of trickling brooks. It's wet and muddy down here, so waterproof boots are a must to keep your feet dry as you hop over rocks and logs. The air felt crisp but not biting, and the overcast skies added a mystical fog that made the woods feel alive and ancient.

The Ascent: Where the Magic Unfolds

As we climbed higher—gaining elevation steadily through switchbacks—the landscape began to shift. Around the midpoint, patches of snow started appearing, first as a light dusting on the branches, then blanketing the ground more thickly. It was magical, like stepping into a winter postcard. The trail, which features sturdy boardwalks and rock steps in spots, became a snowy ribbon winding through the forest. The trees, heavy with fresh powder, created a serene canopy overhead, and every so often, we'd catch glimpses of distant peaks peeking through the mist. The transition from green to white was gradual but breathtaking, turning the hike into a true winter wonderland.

 

One of the highlights was the view across to the surrounding mountains—jagged ridges dusted in snow, standing tall against the gray sky. It's moments like these that remind you why Washington hiking is world-class: the contrast of dark evergreens against pristine white, with occasional bursts of sunlight filtering through to make the snow sparkle like diamonds.

The Reward: Lake 22 in Its Snowy Glory

 

After about 2 hrs of steady hiking (depending on your pace and conditions), we arrived at the lake—and wow, was it worth it. Lake 22, a glacial cirque nestled at the base of Mount Pilchuck, was completely covered in a thick layer of snow, frozen solid and shimmering under the winter light. The surrounding amphitheater of cliffs and trees was equally blanketed, creating an otherworldly scene of quiet beauty. 

 

We reached the lake after a rewarding climb, crossing the sturdy wooden bridge over the outlet stream—a perfect spot to pause, snap photos of the frozen expanse ahead, and grab a quick bite from our packs. The chill was intense, though, so we didn't linger long sitting down; the biting wind off the snow made it too cold for an extended break.

 

From there, we ventured a short distance along the trail that begins the approximately one-mile loop around the lake, soaking in different angles of the stunning views with far fewer crowds than in summer (winter really thins out the visitors). But soon we reached a steep, open slope—the start of known avalanche terrain on the far side—and turned around to stay safe. The silence was profound, broken only by the occasional creak of snow-laden branches or the distant call of a bird. It's hard to capture in words, but imagine a pristine alpine lake completely covered in a thick blanket of snow, framed by towering snow-capped peaks and a forest that looks like it's been delicately frosted by nature's own hand—pure magic.

Gear Recommendations for a Safe and Comfy Trek

Winter hiking demands the right prep, especially on a trail like this that can turn slick and cold quickly. Based on our experience and common advice from fellow hikers, here's what I recommend bringing:

• Microspikes: Essential for traction on icy sections higher up—don't rely on just boots, as the snow can compact into slippery paths.
• Gaiters: These keep snow out of your boots and pants, especially with all the water crossings and deeper drifts.
• Hand warmers and gloves: The temperature drops as you ascend, and windy spots at the lake can make your fingers numb fast.
• Layers: Start with a moisture-wicking base, add insulating mid-layers, and top with a waterproof shell. We shed and added as needed to stay comfortable.

Also, pack plenty of water (or a filter, since streams are abundant), snacks, a headlamp (days are short in December), and a first-aid kit. Snow can persist from November through May, so check recent trip reports for current conditions.

 

Safety First: Avalanche Awareness

While Lake 22 is accessible and rewarding in winter, it's not without risks—particularly avalanches. The upper sections of the trail cross potential avalanche terrain, especially after heavy snowfall or during warming periods. In fact, the Washington Trails Association notes that this popular route can be prone to slides, so it's crucial to assess conditions beforehand. Always check the avalanche forecast from the Northwest Avalanche Center (NWAC) before heading out: https://nwac.us/avalanche-forecast/. If the danger is moderate or higher, consider postponing or choosing a lower-risk alternative. Carry avalanche gear like a beacon, probe, and shovel if you're experienced, but for most day hikers, avoidance is key—stick to the trail and turn back if things feel off.

 

Parking and Facilities at the Trailhead

The Lake 22 trailhead features a gravel loop parking lot with space for about 50–60 cars. A Northwest Forest Pass (or America the Beautiful Pass) is required—display it on your dashboard to avoid fines.

There are vault toilets (pit toilets) available at the trailhead, which are usually stocked and maintained, but no facilities along the trail or at the lake itself.

Pro Tip: Arrive early! This is one of the most popular hikes near Seattle, and the lot fills up quickly—even in winter—especially on weekends or clear days. If the main lot is full, look for limited overflow parking across the street along the Mountain Loop Highway (shoulder spots or a small auxiliary area). Cars often line the road, but get there by 8–9 AM to secure a spot in the main lot and beat the crowds

 

Final Thoughts

Hiking Lake 22 in winter is a reminder of nature's dual beauty: the vibrant, watery start giving way to a snow-draped paradise that feels both invigorating and peaceful. Whether you're chasing solitude or that perfect Instagram shot, this trail delivers. Just remember to respect the elements, prepare adequately, and leave no trace. If you're in the Seattle area and craving a winter adventure, add this to your list—but always prioritize safety. Happy trails!