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Swimming in Glacial Melt Waters of Colchuck Lake

  • Jun 30, 2021
  • 3 min read

Updated: Dec 31, 2025

Why Hike the Colchuck Lake Trail

If there is a single trail in Washington that distills the Enchantment area of the Alpine Lakes Wilderness into an unforgettable hike it's the climb to Colchuck Lake. From the first steps through the montane forest, to the sounds of Mountaineer Creek, and challenging trail conditions, the trail rises steadily upwards until the landscape suddenly opens to the turquoise-colored glacial melt waters of Colchuck Lake.


The Alpine Lakes Wilderness features some of the most rugged topography in the Cascade Range with craggy peaks and ridges, deep glacial valleys, and granite walls spotted with over 700 mountain lakes. This topo map spots lights just a few of the lakes in this region of the Enchantments.

Topo map of the Alpine Lakes Wilderness area in Washington

Hike Distance: 8.3 miles

Elevation Gain: 2,259 feet

Highest Point: 5,614 feet

TrailsNH Hiking Difficulty Calculator: 194 – Strenuous 

NHTrails Hiking Difficulty Rating Scale

Click here to navigate to the TrailsNH website for a description of the hiking difficulty calculator


Let's Start Hiking

The hike begins on Stuart Lake Trail #1599 (located at the Stuart Lake Trailhead) with a gradual climb through a dense forest.

Trail to Cholchuk Lake starts at the Stuart Lake trailhead

Mountaineer Creek runs parallel to the trail so we were never far from the sound of rushing water.

The sound of rushing water from Mountaineer Creek on the trail to Colchuck lake

As we continued, the forest began to thin out and more light filtered through the canopy.

The forest along the trail to Colchuck lake thins out as you climb higher

Occasional breaks in the trees provided views of the surrounding mountains of the central Cascade Range.

views of the surrounding mountains of the central Cascade Range on the trail to Colchuck Lake

After 1.5 miles, the trail crosses Mountaineer Creek on a sturdy log bridge.

log bridge crossing Mountaineer Creek on the trail to Colchuck Lake

The recent period of triple-digit temperatures had caused significant melting of the snow pack in higher elevations and swelled the creek. The turbulent waters cascaded over rock, fallen trees and any other debris in its path.

Heavy summer flow in Mountaineer Creek on the trail to Colchuck Lake

After the bridge, the route steepened and grew rockier. Memories and nightmares of navigating the rocky and root covered trails of the White Mountains in New Hampshire ran through our minds at this point.

rocky, tree root covered and eroded trail leading to Colchuck Lake

The trail leveled off slightly and we were teased with yet another mountain view.

view of central cascade mountains on the trail to Colchuck Lake

After 30 minutes, we reached the second crossing of Mountaineer Creek that led to a talus field.

rocky covered crossing of Mountaineer Creek crossing on the trail to Colchuck Lake

Despite boulders the size of small cars, there was sufficient openings for a ‘scramble-free‘ passage.

scramble free crossing of rock slide on the trail to Colchuck Lake

After the talus slope, the trail took a steep uphill route with rocky terrain with exposed tree roots.

rocky terrain and tree root covered section on the trail to Colchuck Lake

We took a short break and relaxed on a large rock slab that provided expansive views of the valley below.

hikers relaxing on rock slabs on the trail to Colchuck Lake

The movement of glaciers sculpted the Cascades into the jagged alpine range they are today. During the last 2.4 million years numerous ice ages have repeatedly blanketed much of the range with ice. The glaciers carved out deep valleys like the one pictured below.

view of the jagged Cascade range on the trail to Colchuck Lake

Climbing intensified again on the steep final stretch.

Badly eroded section of the trail leading to Colchuck Lake

The trail leveled off and as we walked through a clearing in the trees, we were greeted by the turquoise-colored water of Colchuck Lake.

Turquoise colored glacial melt water of Colchuck Lake

Many people consider this one of the finest lake views in the Cascades and it's easy to see why. The lake is ringed by rugged granite peaks. Dragontail Peak (located left of center), known for its thin jagged ridge, dominates the view. Colchuck Peak (8,705 ft) is located right of center and between these two peaks is the remnants of Colchuck Glacier.

View of Dragontail Peak from shore of Colchuck Lake

We followed one of the many social paths that led down to the shore.

Hikers celebrating climb to Colchuck Lake in Washington

We found the perfect isolated spot and jumped in the sub 50°F temperature water. There was no way we were passing on this opportunity; it was cold but refreshing.

Swimming in the glacial melt water of Colchuck Lake

Located in the center between these two mountains is Aasgard Pass, an unbelievably steep 'shortcut' to the high-elevation basin in the Enchantments. From this angle, the pass looks typical but it is a relentless trail, covered in loose rock that gains nearly 2,000 feet of elevation in less than one mile.

Swimming in the glacial melt waters of Colchuck lake

When snow-covered, the Aasgard Pass can be a dangerous hike for ill-prepared climbers.

Warning sign about climbing Aasgard Pass in snowy condition

After completing this hike, it's easy to understand why Colchuck Lake is one of the more popular hikes in the central Cascades.


Visiting Leavenworth, Washington

Before heading back to West Seattle, we stopped in Leavenworth. Leavenworth is a small, beautifully designed, old world Alpine/Bavarian style village.

Welcome sign to the village of Leavenworth Washington

If you envision a small town, somewhere in Germany, nestled in a narrow valley and surrounded by snow-covered mountains, Leavenworth could be that very place.

the village of Leavenworth Washington resembles a Swiss village

For lunch the choice was obvious; sausage and a beer.

Restaurant sign in the village of Leavenworth Washington

Weston and Dave enjoying a well-deserved beer.

Beer hall in the village of Leavenworth Washington

There was a strong Christmas theme that ran throughout the town which seemed a little out of place with a daytime temperature of 106°F.

Christmas shops in the village of Leavenworth Washington
Christmas themes in shops located in the village of Leavenworth Washington

8 Comments


sisbehaving
sisbehaving
Nov 29, 2021

I wouldn't get enough of those views! Have always wanted to do this hike (it's legendary!) but haven't attempted it yet. Beautifully covered!

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mail
Nov 19, 2021

This lake looks like a beautiful place to swim although I prefer my water much warmer. Leavenworth looks more German than Berlin ;)

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Karen Mellott-Foshier
Karen Mellott-Foshier
Nov 19, 2021

This looks like a lovely hike! Beautiful views!

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verytastyworld
Nov 18, 2021

What an amazing hike in spectacular scenery. And the reward of being able to swim in that beautiful turquoise lake at the end must have been just wonderful.

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Wendy White
Wendy White
Nov 18, 2021

I would love to do the Cholchuck Lake hike. The views are incredible and the turquoise water is stunning. I wouldn't be jumping in the lake though, way too cold for me! You two are crazy lol

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