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Hiking trails & Routes
United States
Colorado
San Juan County

Colorado Trail: Segment 25

Hard

4.5

(8786)

16,108

hikers

Colorado Trail: Segment 25

11:48

33.0km

1,000m

Hiking

Embark on Colorado Trail: Segment 25, a challenging high-alpine hike that spans 20.5 miles (33.0 km) and demands a significant 3287 feet (1002 metres) of elevation gain. This difficult route, estimated to take 11 hours and 48 minutes, immerses you in a landscape of expansive vistas, often above the treeline.…

Last updated: April 23, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Waypoints

A

Start point

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1

219 m

Molas Pass

Highlight • Mountain Pass

Molas Pass sits a few yards below where the Colorado Trail passes the US 550 highway. Walk south 250 feet to the spur trail to the parking area and find …

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2

1.35 km

Little Molas Lake

Highlight • Lake

Little Molas Lake is a small body of water found off the Colorado trail. At 11,000 feet, the lake is surrounded by beautiful mountains. There is a picnic area along …

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3

1.88 km

The trailhead from Little Molas Lake starts at around 10,800 feet and climbs gradually around the Lime Creek tributary valley as it arcs towards Twins Sisters, Jura Knob, and Engineer Peak.

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4

20.5 km

Spur trail to small lake

Highlight • Trail

5

22.5 km

Creek and waterfall

Highlight • Waterfall

6

26.6 km

7

27.1 km

Another milky stream

Highlight • River

8

29.1 km

View of Engineer Mountain

Highlight • Viewpoint

Take a good look at Engineer Mountain, with its peak resembling a volcanic plug from a massive eruption 25–30 million years ago, sitting above a broad base. From the south, it looks like a balanced pyramid.

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31.9 km

Bolam Pass

Mountain Pass

10

32.3 km

Campsite with fire ring

Highlight • Rest Area

11

33.0 km

Celebration Lake

Highlight • Lake

Celebration Lake is home to tons of axolotls! They are most active in the afternoon when the water is warmer. The lake is accessible by car, so you might have …

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B

33.0 km

End point

Parking

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Way Types & Surfaces

Way Types

32.8 km

218 m

< 100 m

Surfaces

31.9 km

911 m

174 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (3,790 m)

Lowest point (3,300 m)

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Weather

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Today

Thursday 7 May

8°C

-9°C

0 %

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Max wind speed: 9.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park to access Colorado Trail: Segment 25?

The Colorado Trail: Segment 25 typically starts near Molas Pass. You can find parking at the Molas Pass Trailhead, which is a common access point for this segment. Another key access point is the Little Molas Lake Trailhead.

Are there any permits or entrance fees required for this trail?

No, there are generally no permits or entrance fees required to hike Colorado Trail: Segment 25. It is located within the San Juan National Forest, which typically does not charge for day-use access to trails. However, always check the latest regulations from the US Forest Service before your trip, especially if you plan to camp overnight.

Is Colorado Trail: Segment 25 dog-friendly?

Yes, this segment of the Colorado Trail is generally dog-friendly. However, it's crucial to keep your dog on a leash to protect wildlife and ensure a pleasant experience for all hikers. Always pack out all waste and ensure your dog is prepared for high-altitude hiking conditions.

What is the best time of year to hike this segment?

The best time to hike Colorado Trail: Segment 25 is typically during July and August. During these months, the high-alpine tundra is vibrant with wildflowers, and the weather is generally more stable. Hiking outside of this window, especially in late spring or fall, can mean encountering snow and more unpredictable conditions.

How challenging is the Colorado Trail: Segment 25?

While some sources rate it as easy to intermediate for day hikes, the full segment is considered difficult due to its length (approximately 20.5 miles or 33 km) and high elevation. Much of the trail lies above 11,000 feet, topping out around 12,500 feet. The grade is often reasonable, but the sustained effort at high altitude requires significant energy.

What kind of terrain can I expect on the route?

The terrain is a mix of single-track trail and old, reclaimed roads. You'll encounter both forested areas, including old-growth Engelmann spruce, and lush, grassy meadows. A significant portion of the trail is high alpine and goes above the treeline, offering extensive views. In 2022, a former jeep road section was converted into a trail exclusively for hikers and bikers.

What are the main scenic highlights along the route?

This segment is renowned for its panoramic 360-degree views of the Rocky Mountains, including impressive peaks like Engineer Mountain. You'll pass by beautiful alpine lakes such as Little Molas Lake and Celebration Lake. Expect to see meadows abundant with wildflowers, clear, cold creeks, and even a waterfall.

Are there water sources or campsites available on the trail?

Yes, you'll find numerous clear, cold creeks along the trail that can serve as water sources, though filtering is always recommended. There are also several informal campsites, including a campsite with a fire ring, particularly in the forested sections. Some milky streams are also noted, which might require extra filtration.

What kind of wildlife might I encounter on this trail?

Given the high-alpine meadows and forested areas, you might spot deer, especially in the open meadows. Keep an eye out for various bird species and smaller mammals common to the Rocky Mountains. Always maintain a respectful distance and do not feed wildlife.

Does this segment of the Colorado Trail intersect with other paths?

Yes, while primarily following the Colorado Trail, this route also passes through sections of the Twin Sisters / Colorado Trail and the Rico-Silverton Trail. The main path is, of course, the Colorado Trail (Segment 25) itself.

Is this trail suitable for beginners or families with young children?

Due to its length, high elevation, and overall difficulty rating, the full Colorado Trail: Segment 25 is generally not recommended for beginners or families with young children. However, shorter out-and-back sections from trailheads like Little Molas Lake Trailhead could be suitable for more experienced families looking for a day hike at altitude.

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