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

Alpine Lake via Iron Creek Trail

Moderate

4.8

(6494)

9,224

hikers

Alpine Lake via Iron Creek Trail

01:52

6.05km

350m

Hiking

Embark on the Alpine Lake via Iron Creek Trail, a moderate hike that takes you 3.8 miles (6.0 km) into the Sawtooth Wilderness. You will gain 1141 feet (348 metres) in elevation over an estimated 1 hour and 52 minutes. The path winds through a dense forest alongside Iron Creek,…

Last updated: April 23, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Waypoints

A

Iron Creek-Stanley Lake Trailhead

Highlight • Trail

This trailhead is a popular access point into the Sawtooth Wilderness, the boundary is a mile from here. Wilderness permits are needed and can be obtained here for free. It …

Tip by

1

5.87 km

Alpine Lake

Highlight • Lake

This is one of two lakes within the Sawtooth Wilderness known as Alpine Lake with the other one located further south. Popular Sawtooth Lake is just half a mile from …

Tip by

B

6.05 km

End point

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Way Types & Surfaces

Way Types

6.05 km

Surfaces

6.05 km

< 100 m

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Elevation

Elevation

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Weather

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Today

Monday 1 June

16°C

0°C

26 %

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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

Where should I park for the Alpine Lake via Iron Creek Trail?

The trail starts at the Iron Creek-Stanley Lake Trailhead. Parking is available there, but it's a very popular destination, especially during summer months. The parking lot can fill up quickly, so arriving early is highly recommended to secure a spot.

Do I need a permit to hike to Alpine Lake?

Yes, the trail enters the Sawtooth Wilderness, which requires a free wilderness permit. These permits are self-issued and can be obtained at the trailhead. Be sure to fill one out before you start your hike.

Is the Alpine Lake via Iron Creek Trail dog-friendly?

Yes, dogs are generally permitted on the trail. However, they must be kept on a leash, especially between July 1st and Labor Day, to protect wildlife and ensure a pleasant experience for all hikers.

When is the best time to hike to Alpine Lake?

The best time to hike this trail is typically during the summer months, from late June through September, when the snow has melted and the weather is most favorable. However, it is a very popular trail during this period, so expect crowds.

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

The trail begins relatively flat, winding through a dense forest alongside Iron Creek, with typical tripping hazards like rocks and roots. Around 1.7 miles in, it begins a consistent ascent via switchbacks. As you gain elevation, the surface transitions to varied singletrack dirt and rock, becoming rockier with some steeper sections and loose rock closer to Alpine Lake.

How long does it typically take to hike to Alpine Lake?

The route is approximately 6 kilometers (3.7 miles) one-way to Alpine Lake. Given its moderate difficulty and an elevation gain of about 348 meters (1,240 feet), hikers typically complete the round trip in about 4-5 hours, depending on pace and time spent enjoying the lake.

What can I see along the route?

The trail offers stunning scenery. You'll follow Iron Creek through towering pines, pass meadows with thin waterfalls, and enjoy tremendous views as you ascend. A notable viewpoint of the Iron Creek Valley looking out to the Stanley Basin is about 3 miles in. The highlight is, of course, the emerald-green Alpine Lake, nestled in a granite bowl with Alpine Peak in the background.

Is this trail suitable for beginners?

While considered moderate, the trail is a good introductory hike to the Sawtooth Wilderness. The initial section is straightforward, but the consistent ascent via switchbacks and rockier sections towards the lake require a reasonable level of fitness. It's a rewarding hike for those new to mountain hiking who are prepared for a steady climb.

Does the trail intersect other well-known paths?

Yes, the route primarily follows the Iron Creek-Stanley Lake Trail. Sections of the Alpine Way Trail also intersect or run concurrently with parts of the route.

Are there camping opportunities at Alpine Lake?

Yes, there are multiple camping options around Alpine Lake, with some recommended sites about halfway around the lake. However, due to its high use and limited fuel sources, campfires are strictly prohibited at Alpine Lake. Always practice Leave No Trace principles.

Is there cell service on the trail?

No, this trail enters the Sawtooth Wilderness, which means you should be prepared for a remote experience with no cell service. It's advisable to download offline maps and inform someone of your hiking plans before you go.

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