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Mono County
June Lake

Fern Lake Trail

Moderate

5.0

(1)

23

hikers

Fern Lake Trail

02:12

5.22km

460m

Hiking

Hike the moderate 3.2-mile Fern Lake Trail in Ansel Adams Wilderness, gaining 1502 feet to reach Fern Lake and its panoramic views.

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Owens River Headwaters Wilderness

Inyo National Forest

Waypoints

A

Start point

Parking

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1

2.57 km

Fern Lake

Highlight • Lake

Fern Lake is a short and steep hike that takes you to a stunning green lake beneath Carson Peak. The hike can be challenging, offering a good amount of exercise …

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B

5.22 km

End point

Parking

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Way Types & Surfaces

Way Types

5.18 km

< 100 m

Surfaces

5.18 km

< 100 m

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Elevation

Elevation

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Weather

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Today

Monday 18 May

8°C

-4°C

0 %

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Max wind speed: 14.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

How do I get to the Fern Lake Trailhead and what are the parking options?

The Fern Lake Trailhead is located in Rocky Mountain National Park. Parking can be challenging, especially during peak season. It's advisable to arrive early in the morning to secure a spot. During certain times of the year, a shuttle service may be available from the park's visitor centers to reduce congestion. Check the official NPS website for current shuttle schedules and parking regulations.

Are there any permits or entrance fees required to hike this trail?

Yes, the Fern Lake Trail is located within Rocky Mountain National Park, which requires an entrance fee. Additionally, during peak season (typically late May through mid-October), a timed entry permit may be required to access the park. It's crucial to check the official National Park Service website for the most up-to-date information on fees and permit requirements before your visit.

What is the best time of year to hike to Fern Lake?

The trail is accessible year-round, but the best time to hike for pleasant weather and clear trails is typically from late spring through early fall. Autumn offers stunning golden aspen groves. Winter hiking is possible but requires appropriate gear like microspikes for icy or snow-covered sections, and road closures might extend the hike's length.

Is the Fern Lake Trail dog-friendly?

No, dogs are generally not permitted on hiking trails in Rocky Mountain National Park, including the Fern Lake Trail. This policy helps protect wildlife and natural resources. Service animals are an exception. Always check the latest park regulations on the NPS website before planning your trip.

What is the terrain like on the way to Fern Lake?

The terrain is quite varied. The first 1.7 miles are relatively flat, following the Big Thompson River. Beyond 'The Pool', the trail ascends more rapidly with switchbacks, becoming rugged and steep in sections. You'll pass through shaded forests, open meadows, aspen groves, and granite outcroppings. Some areas show signs of recovery from past fires, leading to increased sun exposure. Higher elevations can be rocky.

What notable features and views can I expect along the route?

The trail offers continuous scenic views along the Big Thompson River. Highlights include the distinctive 'Arch Rocks' and 'The Pool', a popular spot for picnics. You'll also encounter the impressive 60-foot 'Fern Falls'. Upon reaching Fern Lake, you'll be rewarded with breathtaking panoramic views of surrounding peaks like Notchtop Mountain, Little Matterhorn, Knobtop Mountain, and The Gable.

Is this trail suitable for families or beginners?

The Fern Lake Trail is generally categorized as moderate. The initial 1.7 miles to 'The Pool' are relatively flat and suitable for a less strenuous walk, making it a good option for families or beginners looking for a shorter outing. However, the subsequent ascent to Fern Lake involves a significant and often steep climb, making the full round trip best suited for moderately experienced hikers.

What wildlife might I see on the trail?

Wildlife spotting is common along the route. Hikers often have opportunities to see elk, deer, and moose. Occasionally, bears are also sighted. The diverse habitats along the trail, from riverbanks to alpine areas, support a variety of animal life.

Does the trail intersect other well-known paths?

Yes, the route also passes through sections of the Yost Creek Trail and the Fern Lake Trail itself, which is the primary path to the lake. For those seeking longer excursions, the trail can be extended to connect with other beautiful alpine lakes like Spruce Lake and Odessa Lake.

What's an insider tip for hiking the Fern Lake Trail?

To make the most of your hike and potentially avoid some of the steeper sections on the return, consider hiking this trail as a point-to-point from the Bear Lake Trailhead to the Fern Lake Trailhead. This option is longer (around 9.2 miles) but offers a different perspective and a net downhill experience, provided you arrange shuttle transportation between the trailheads.

What should I bring for a hike to Fern Lake?

For a moderate hike like this, essential items include plenty of water, snacks, layers of clothing (weather can change quickly), sun protection (hat, sunscreen), a map or navigation device, and sturdy hiking boots. Depending on the season, microspikes or trekking poles might also be beneficial, especially for icy or rocky sections.

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