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Routes
Hiking trails & Routes
United States
Idaho
Custer County
Sawtooth National Recreation Area

Imogene Lake to Toxaway Lake to Alice Lake Loop

Hard

4.6

(5068)

13,335

hikers

Imogene Lake to Toxaway Lake to Alice Lake Loop

12:36

39.4km

1,260m

Hiking

Embark on the Imogene Lake to Toxaway Lake to Alice Lake Loop, a demanding hiking adventure through Idaho's Sawtooth Wilderness. This difficult route spans 24.5 miles (39.4 km) and involves a significant elevation gain of 4136 feet (1260 metres), typically requiring about 12 hours and 35 minutes to complete. You will traverse diverse terrain, from dense forests to rocky paths, all while enjoying continuous big mountain views and the vibrant clear blue waters of alpine lakes like Alice Lake and Imogene Lake.

Before you set out, remember that permits are required to enter the Sawtooth Wilderness, though they are free of charge. Be prepared for potential challenges if you hike early in the season; you might encounter difficult creek crossings and persistent, deep snow cover, even extending into summer months. Planning your visit for later in the season can help avoid these conditions.

This loop offers a true immersion into the heart of the Sawtooths, showcasing sparkling alpine lakes that reflect the jagged peaks around them. The pass situated between Twin Lakes and Toxaway Lake is particularly notable, providing spectacular panoramic views that highlight the rugged beauty of this wilderness area. It is a journey designed for experienced hikers seeking a profound connection with nature.

Last updated: April 23, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Waypoints

A

Start point

Get Directions

1

309 m

Lake view

Highlight • Viewpoint

2

1.74 km

Sand Mountain Pass

Highlight • Mountain Pass

Sand Mountain Pass is a challenging, but rewarding section of hiking deep in the Sawtooth Mountains. As you ascend dozens of switchbacks you are granted fantastic panoramic views over the jagged peaks and blue alpine lakes. At the top of the pass there is a spur trail to the east, which takes you up to the summit of Sand Mountain.

Tip by

3

12.1 km

Twin Lakes

Highlight • Lake

The Twin Lakes are just a short hike from Alice Lake and El Capitan. Both are glacial lakes that are separated by a narrow strip of land and nestled nicely between the rugged peaks of Snowyside Peak and Perfect Peak.

Tip by

4

13.9 km

Alice Lake & El Capitan

Highlight • Lake

Alice Lake with impressive El Capitan towering just next to it is a popular hiking and multi-day backpacking destination. And for good reason, as the alpine scenery is absolutely perfect.

Tip by

5

23.2 km

Pettit Lake is one of the largest lakes in the Sawtooth National Recreation Area and a great access point into the wilderness just west of here. Popular hiking destinations are the beautiful Alice Lake and Twin Lakes, but you can also hike a large loop to visit Edith and Farley Lake. Wilderness Permits are needed to enter the wilderness and can be obtained at the trailhead.

Tip by

31.2 km

Viewpoint

Viewpoint

7

35.2 km

Edith Lake

Highlight • Lake

Edith Lake is a small, but stunning, alpine lake perched high up in a bowl. Sitting at 8,660 feet above sea level, this lake often remains frozen into early summer. This is a great place to take photos and relax by the water before heading up the challenging Sand Mountain Pass or returning to the trailhead.

Tip by

8

37.0 km

View of Imogene Lake

Highlight • Viewpoint

B

39.4 km

End point

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Way Types & Surfaces

Way Types

29.7 km

9.65 km

Surfaces

33.9 km

3.73 km

1.79 km

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Elevation

Elevation

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Highest point (2,860 m)

Lowest point (2,130 m)

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Weather

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Saturday 9 May

10°C

-3°C

0 %

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Max wind speed: 5.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where does the Imogene Lake to Toxaway Lake to Alice Lake Loop start, and what are the parking options?

The loop typically starts from the Pettit Lake trailhead, which is a common access point for the Sawtooth Wilderness. Parking is available at the trailhead, but it can fill up quickly, especially during peak season. Arriving early is highly recommended to secure a spot.

How difficult is the Imogene Lake to Toxaway Lake to Alice Lake Loop, and is it suitable for beginners?

This is a difficult and challenging backpacking route, not generally recommended for beginners. It involves significant elevation gain, particularly the strenuous climb over Imogene Pass, and covers nearly 40 kilometers. While experienced hikers might attempt the shorter Alice-Toxaway Loop as a long day hike, this extended loop is best suited for experienced backpackers planning a multi-day trip.

How many days should I plan for this backpacking trip?

Most hikers recommend dedicating 5-6 days to fully explore this extended loop, including side trips. The core Alice-Toxaway Loop alone typically takes 2-3 days. Planning for more days allows for a more relaxed pace and time to enjoy the stunning alpine lakes and scenery.

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

The best time to hike this loop is generally from mid-July through September. Early in the season (June-early July), you may encounter difficult creek crossings and continuous, deep snow cover, even at higher elevations. Fall offers beautiful colors but can bring colder temperatures and the possibility of early snow.

Are permits required to hike in the Sawtooth Wilderness, and are there any fees?

Yes, permits are required to enter the Sawtooth Wilderness. These permits are free of charge and can typically be obtained at the trailhead or nearby ranger stations. It's essential to secure a permit before starting your hike to comply with wilderness regulations.

Is the Imogene Lake to Toxaway Lake to Alice Lake Loop dog-friendly?

Dogs are generally allowed on trails within the Sawtooth Wilderness, but they must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all hikers. Always practice Leave No Trace principles, including packing out all pet waste.

What kind of terrain and scenery can I expect on this trail?

You'll encounter incredibly diverse and stunning terrain, from dense forests and lush riparian areas to sections with sharp granite peaks and rocky trails. The scenery is a major draw, offering continuous 'big mountain views and sparkling alpine lakes' with vibrant clear blue waters and dramatic reflections of jagged peaks. Expect significant climbing sections, especially when ascending to passes between lakes.

What are the main scenic highlights along the loop?

The loop is packed with incredible sights! Key highlights include the stunning Alice Lake & El Capitan, the picturesque Twin Lakes, the expansive Lake view, and the challenging but rewarding Sand Mountain Pass. You'll also pass by Pettit Lake, Edith Lake, and enjoy a spectacular View of Imogene Lake.

Does this loop connect with other trails in the Sawtooth Wilderness?

Yes, this route utilizes sections of several official trails. You will hike along parts of the Alice Lake - Redfish Lake Trail, Pettit Creek Trail, Yellowbelly Trail, Trail 041, and Trail 040, which are all part of the extensive Sawtooth Wilderness trail network.

What should I consider packing for this challenging backpacking trip?

Given the multi-day nature and challenging terrain, essential gear includes a sturdy backpack, tent, sleeping bag, cooking equipment, water filter/purifier, and sufficient food. Layered clothing is crucial due to varying temperatures, even in summer. Don't forget navigation tools (map, compass, GPS), a first-aid kit, sun protection, and bear-resistant food storage. Trekking poles are highly recommended for the steep ascents and descents.

Are there any specific challenges or insider tips for hiking this loop?

The climb over Imogene Pass is particularly taxing and often described as the most difficult section; be prepared for a grueling ascent. Early season hikes can involve significant snow and difficult creek crossings, so check conditions before you go. Many hikers prefer to tackle the loop clockwise to get the steepest climbs out of the way earlier in the trip, though both directions offer incredible views. Always carry enough water or have a reliable filtration system, as water sources can be seasonal.

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