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Running trails & routes
United States
Colorado
San Juan County

Island Lake via Ice Lakes Trail

Hard

3.3

(24)

38

runners

Island Lake via Ice Lakes Trail

01:45

9.65km

790m

Running

Embark on a challenging jogging adventure to Island Lake via the Ice Lakes Trail, a difficult route spanning 6.0 miles (9.7 km). You will gain a significant 2580 feet (786 metres) in elevation, requiring about 1 hour and 45 minutes to complete. The trail winds through subalpine forests and open…

Last updated: April 23, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

San Juan National Forest

Waypoints

A

Start point

Parking

Get Directions

1

79 m

Ice Lake Trailhead

Highlight • Trail

Here starts the 3.79 miles long trail to the Ice Lakes. There are about 800 meters to overcome.

Tip by

2

4.75 km

Island Lake

Highlight • Lake

Island lake is a cerulean-blue alpine lake nestled just north of Ice Lake below Grant Peak. This is one of the best views you will get in the Ice Lakes Basin.

Tip by

B

9.65 km

End point

Parking

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Way Types & Surfaces

Way Types

8.97 km

551 m

< 100 m

< 100 m

Surfaces

8.97 km

567 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.

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Weather

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Today

Friday 17 July

16°C

6°C

85 %

Additional weather tips

Max wind speed: 7.0 km/h

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Frequently Asked Questions

Where is the trailhead and what are the parking options for the Island Lake via Ice Lakes Trail?

The trailhead for this route is the Ice Lake Trailhead, located in the San Juan Mountains near Silverton, Colorado. Parking can be very limited, especially during peak season. It's highly recommended to arrive very early in the morning to secure a spot.

Is the Island Lake via Ice Lakes Trail dog-friendly?

Yes, dogs are generally allowed on this trail. However, it's crucial to keep them on a leash to protect the fragile alpine environment and local wildlife. Always pack out all waste.

What is the best time of year to visit Island Lake via Ice Lakes Trail?

The best time to visit is typically from mid-July to early September. During this period, the snow has usually melted, and the meadows are vibrant with wildflowers. Be aware that this is also peak season, so expect crowds. Early starts are essential to avoid afternoon thunderstorms, which are common in the San Juan Mountains.

Do I need a permit or pay an entrance fee for this trail?

As of current information, there are no specific permits or entrance fees required to hike the Island Lake via Ice Lakes Trail, as it is located within the San Juan National Forest. However, always check the latest regulations with the USDA Forest Service before your visit, as rules can change.

What is the terrain like on this route?

The terrain is consistently challenging and rated as difficult. You'll encounter a persistent uphill climb with significant elevation gain. The path transitions from subalpine forest to open meadows and then becomes steeper and rockier as it ascends to the alpine lakes. Expect narrow sections and potential hazards from the 2020 Ice Fire, including tree snags and loose material.

What are the notable natural features and viewpoints along the trail?

The trail offers exceptional scenery. You'll pass waterfalls in the lower basin, wildflower-filled meadows, and breathtaking panoramic views of towering mountain peaks like U.S. Grant Peak and Pilot Knob. The highlights are the alpine lakes themselves: Ice Lake, known for its deep turquoise-blue water, and Island Lake, with its stunning green water and unique rock island.

How long does it typically take to jog the Island Lake via Ice Lakes Trail?

The route is approximately 9.65 kilometers (6 miles) round trip to Island Lake, with an elevation gain of about 786 meters (2,580 feet). For jogging, it typically takes around 1 hour and 45 minutes to 2 hours, but this can vary significantly based on fitness level and how much time you spend enjoying the views.

How can I avoid crowds on the Island Lake via Ice Lakes Trail?

This trail is very popular, especially from July 4th through Labor Day. To avoid the heaviest crowds and secure parking, plan to start your jog very early in the morning, ideally before 7 AM. Visiting on weekdays rather than weekends can also help.

Does the trail intersect with other paths?

Yes, the route primarily follows the Ice Lakes Trail and includes a section of the Island Lake Trail. It also briefly intersects with Clear Lake Road and South Mineral Road in its lower sections.

What kind of wildlife might I see on the trail?

While wildlife sightings are never guaranteed, you might spot various alpine creatures. Keep an eye out for marmots, pikas, and various bird species. Larger mammals like deer or elk are less common but possible. Always observe wildlife from a distance and do not feed them.

Is this trail suitable for beginners or families?

No, this trail is consistently rated as difficult or strenuous due to its significant elevation gain, rocky terrain, and high altitude. It is best suited for individuals with very good fitness and some alpine experience. It is generally not recommended for beginners or young children.

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01:50h

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