Alpine wildflowers and mountain valley in the San Juans

San Juan Mountains · 8,000–13,000'

Hiking the San Juans

Alpine lakes, wildflower meadows, and 13,000-foot peaks — with trails that start right from the front door

Trail Guide

Four trails we love

The San Juan Mountains offer some of the most spectacular hiking in all of Colorado — from gentle meadow walks to lung-burning climbs above 12,000 feet. Here are four of our favorite trails, ranging from one that starts steps from the townhouse to the iconic turquoise lakes above Silverton.

A note on altitude: our townhouse sits at 8,793 feet, and several of these trails climb above 12,000 feet. If you're coming from sea level, give yourself a day or two to acclimate before tackling the harder hikes. Start with the Purgatory Trail or the meadow section of Coal Bank Pass, then work up to Ice Lakes.

4

Trails

6–8.4

Miles (round trip)

12,693'

Highest Point

2 min – 50 min

Drive from House

Waterfall gorge along the Purgatory Trail
From Your Doorstep

Purgatory Trail

Walk out the front door

8.6 miles1,656 ftHard

The trailhead sits right in the neighborhood — a short walk down the street from the townhouse. Purgatory Trail (#511) descends about 800 vertical feet over the first mile to the flats, then follows the contour of Cascade Creek for three miles to its confluence with the Animas River.

The terrain is wonderfully varied: a rocky initial descent, flat meadow hiking through Purgatory Flats, then a series of five up-and-down sections through old-growth forest before a final steep descent to the Animas River and the Animas River Bridge. Wildflowers, river views, and the chance to spot bears make this a quintessential San Juan experience.

Distance

8.6 miles

Elevation

1,656 ft

High Point

8,800 ft

Time

4–5 hours

Trailhead

Purgatory neighborhood

2-minute walk from the house

Best Season

June – October

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Highlights

Trailhead steps from the townhouse
Cascade Creek & Animas River views
Purgatory Flats meadow camping
Diverse terrain — forest, meadow, river
Bear and wildlife sightings common
Trail through wildflower meadows toward Ice Lake and surrounding peaks
Top Pick

Ice Lakes & Island Lake

Colorado's most beautiful alpine lakes

8.4 miles2,550 ftVery Hard

This is the premier hike out of Silverton and one of the most photographed trails in all of Colorado. The Ice Lakes Trail climbs relentlessly from the trailhead at 9,840 feet through dense forest, breaking above timberline into a lower basin of wildflower meadows before the final push to two of the most stunning alpine lakes in the Lower 48.

Ice Lake sits at 12,270 feet — a surreal, impossibly turquoise pool cradled beneath jagged 13,000-foot ridgelines. Continue another 0.7 miles to Island Lake at 12,392 feet for an even more dramatic setting, ringed by towering peaks reflected in crystal-clear waters. The colors of these lakes have to be seen to be believed.

Distance

8.4 miles

Elevation

2,550 ft

High Point

12,392 ft

Time

5–7 hours

Trailhead

South Mineral Campground

45 min from the house

Best Season

Mid-July – Mid-September

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Highlights

Two jaw-dropping turquoise alpine lakes
Wildflower meadows in lower basin
Views of 13,000-ft peaks from every angle
Widely considered Colorado's most scenic hike
Good fishing for brook trout at Columbine Lake nearby
Sunflowers and alpine valley in the San Juan Mountains

Columbine Lake

Sapphire waters off the Million Dollar Highway

6.6–8.2 miles2,540 ftHard

One of the most rewarding day hikes off the Million Dollar Highway, the Columbine Lake Trail (#509) climbs through 13 steep switchbacks before breaking above timberline into some of the most beautiful alpine terrain in the San Juans. The initial mile is demanding — gaining elevation rapidly from the trailhead at 10,340 feet — but the payoff is extraordinary.

At the two-mile mark, you reach a saddle at 12,448 feet where the grade softens and the trail becomes a pleasant walk into the upper basin of Mill Creek. The trail follows the creek to its source: Columbine Lake, a brilliantly sapphire-colored alpine pool at 12,693 feet. Brook trout fishing is good here, and strong hikers can continue to Columbine Pass at 13,094 feet for even bigger views.

Distance

6.6–8.2 miles

Elevation

2,540 ft

High Point

12,693 ft

Time

5–6 hours

Trailhead

Forest Road 820, off US-550

50 min from the house

Best Season

Mid-July – Mid-September

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Highlights

Brilliant sapphire-colored alpine lake
Above-treeline hiking with panoramic views
Good brook trout fishing
Option to continue to Columbine Pass (13,094 ft)
Accessible from the Million Dollar Highway
Wildflower meadow with dramatic San Juan peaks
Wildflower Paradise

Coal Bank Pass to Engineer Mountain

The best wildflower hike in the San Juans

6.0 miles2,425 ftHard

Just up the road from the townhouse, Coal Bank Pass is the starting point for one of the finest wildflower hikes in all of Colorado. The trail climbs northeast from the pass through spruce-fir forest before emerging into expansive alpine meadows that explode with color from mid-July through August — columbines, paintbrush, lupine, and dozens more.

From the meadows, the trail steepens as it approaches Engineer Mountain, a dramatic 12,968-foot peak that towers above the surrounding landscape. The final push to the summit involves some Class 3 scrambling over rocky terrain, but you don't need to summit to have an incredible day — the meadow views alone are worth the trip. No fees, no registration, just wildflowers and big mountain scenery.

Distance

6.0 miles

Elevation

2,425 ft

High Point

12,968 ft

Time

4–6 hours

Trailhead

Coal Bank Pass, US-550

15 min from the house

Best Season

Mid-July – August (peak wildflowers)

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Highlights

Spectacular wildflower meadows in summer
Dramatic views of Engineer Mountain
Just 15 minutes from the townhouse
No fees or permits required
Meadow hike is family-friendly (skip the summit scramble)

Before You Go

High-altitude hiking tips

Acclimate first

Give yourself a day or two at the townhouse (8,793 ft) before attempting trails above 12,000 ft. Hydrate well and take it easy.

Start early

Summer thunderstorms build by early afternoon, especially during monsoon season (July–August). Aim to be above treeline before noon and heading down by 1 PM.

Layer up

Temperatures can swing 40°F in a single hike. Bring a rain shell, warm layer, and sun protection — even on bluebird days.

Bear country

Black bears are common in the San Juans. Make noise on the trail, carry bear spray, and store food properly. Bears with cubs are often spotted on the Purgatory Trail.

Know your limits

If you feel symptoms of altitude sickness (headache, nausea, dizziness), descend immediately. Every trail here has beautiful scenery well before the high point.

Leave no trace

Alpine meadows are fragile and take decades to recover. Stay on trail, pack out all waste, and avoid trampling wildflowers for photos.

Mountain landscape near Purgatory

Your basecamp awaits

The trail starts here