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Grand County

St. Louis Lake Trail

Moderate

St. Louis Lake Trail

03:00

9.30km

640m

Hiking

Embark on the St. Louis Lake Trail, a moderate hiking route that spans 5.8 miles (9.3 km) and climbs 2109 feet (643 metres). This journey, which typically takes around 2 hours and 59 minutes, leads you through dense forests and across several creeks. As you ascend, you will eventually break through the treeline, revealing expansive views before reaching the serene St. Louis Lake, nestled in an alpine bowl.

To begin your adventure, be aware that the first 3 miles of the route follow a closed forest road, which you can either hike or bike to reach the main singletrack. Plan your visit carefully, as snow can linger at higher elevations well into July, impacting trail conditions. Dogs are welcome to join you on this trail.

The trail offers a unique experience by combining a longer approach with a rewarding alpine destination. The lake itself provides sublime vistas over the valley, framed by a backdrop of bald peaks. Keep an eye out for vibrant wildflowers if you are hiking during the warmer months, adding another layer of natural beauty to your trip.

Last updated: April 23, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Waypoints

A

Start point

Parking

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9.28 km

Saint Louis Lake

Lake

B

9.30 km

End point

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Way Types & Surfaces

Way Types

4.92 km

4.29 km

< 100 m

Surfaces

6.82 km

2.48 km

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Elevation

Elevation

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Weather

Powered by Foreca

Tuesday 7 July

18°C

9°C

56 %

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Max wind speed: 1.0 km/h

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Frequently Asked Questions

How do I get to the St. Louis Lake Trailhead, and what are the parking options?

The St. Louis Lake Trail is located near Winter Park, Colorado, within the Fraser Experimental Forest. The trail begins with an approximately 3-mile trek along a closed forest road before reaching the singletrack. Parking is available at the start of this forest road.

What is the terrain like on the St. Louis Lake Trail, and how difficult is it?

The trail starts with a 3-mile section on a closed forest road, which can also be biked. After this, it transitions to a singletrack that ascends through thick forest with several creek crossings. Above the treeline, it becomes rocky, potentially crossing avalanche fields, and offers expansive views. The trail is generally considered to have a "hard overall physical rating" due to significant elevation gain, often classified as an intermediate or blue difficulty alpine singletrack. Snow can persist at higher elevations well into July.

Is the St. Louis Lake Trail dog-friendly?

Yes, dogs are permitted on the St. Louis Lake Trail. Please ensure they are kept under control and follow all local regulations, such as leash laws, to protect wildlife and other hikers.

What is the best time of year to hike the St. Louis Lake Trail?

The best time to hike is typically from late spring through early fall. However, snow can persist at higher elevations well into July, so be prepared for varied conditions. Summer offers potential for wildflowers, while fall brings vibrant colors. Always check current weather and trail conditions before heading out.

Are there any permits or fees required to hike the St. Louis Lake Trail?

Generally, no specific permits or entrance fees are required for day hiking the St. Louis Lake Trail within the Arapaho National Forest. However, if you plan on overnight backpacking, designated backcountry campsites are available, and you should check with the USDA Forest Service for any specific regulations or permits needed for camping or other activities.

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

The trail offers diverse scenery, starting through thick forest and opening up to expansive views above the treeline. The highlight is St. Louis Lake itself, nestled in an alpine bowl, providing sublime vistas over the valley and a backdrop of bald peaks. The area is rich with alpine lakes, creeks, and potential for wildflowers in season.

Is the St. Louis Lake Trail suitable for families or beginners?

Due to its significant elevation gain and the initial 3-mile approach on a closed forest road, the St. Louis Lake Trail is generally considered challenging. It's rated with a "hard overall physical rating" and is not typically recommended for beginners or very young children. Hikers should have a good level of fitness.

Does the St. Louis Lake Trail connect with other routes?

Yes, the route is part of a larger network. It includes sections of the Saint Louis Lake Trail and connects to the St. Louis Pass Trail, which can lead to St. Louis Peak.

Can I backpack and camp overnight at St. Louis Lake?

Yes, the St. Louis Lake area is a popular destination for backpacking. There are designated backcountry campsites distributed around the lake. Always practice Leave No Trace principles and check with the USDA Forest Service for any required permits or specific regulations regarding backcountry camping.

What's a good strategy for tackling the initial section of the trail?

The first 3 miles of the route are along a closed forest road before reaching the singletrack. To save time and energy, you can bike this initial section. There is a bike rack available at the transition point where the singletrack begins.

What are the winter hiking conditions like on the St. Louis Lake Trail?

Winter hiking on this trail can be very challenging. Snow can persist at higher elevations well into July, and the alpine environment can be exposed to harsh weather. Hikers attempting the trail in winter or early spring should be experienced, properly equipped with snowshoes or skis, and aware of avalanche risks.

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