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Idaho
Custer County
Sawtooth National Recreation Area

Alpine Lake

Highlight • Lake

Alpine Lake

Hiking

5.0

(2)

Alpine Lake is a stunning high-altitude lake nestled deep within the Sawtooth Mountains of Custer County, Idaho. Located in the pristine Sawtooth National Recreation Area and part of the Sawtooth Wilderness, this natural gem sits at an elevation of 2,386 meters (7,828 feet) above sea level. It is renowned for its clear waters and dramatic mountain backdrop, with Alpine Peak rising prominently nearby. Less than a half-mile southwest, you'll find the popular Sawtooth Lake, making Alpine Lake a rewarding destination for those exploring the region.

Visitors consistently praise the serene atmosphere and the feeling of being truly immersed in the wilderness. The striking natural beauty, characterized by the lake's clear waters and the rugged peaks surrounding it, offers a peaceful escape. Many hikers appreciate its proximity to Sawtooth Lake, allowing for a combined experience of two iconic alpine destinations within the same journey. The sense of achievement after reaching such a remote and beautiful spot is a common highlight for those who make the trek.

Before embarking on your adventure to Alpine Lake, it's essential to be prepared for mountain conditions. The lake can remain frozen into early summer, so appropriate layers and sturdy footwear are recommended, especially for the "Alpine Lake terrain elevation difficulty." A wilderness permit is required for hiking into this area, which can be obtained at various trailheads, including the Iron Creek trailhead. This trailhead, accessible from State Highway 21 via Sawtooth National Forest road 619, serves as a primary starting point for many "Alpine Lake trails routes."

The best time to visit Alpine Lake is typically from late summer through early autumn, once the ice has melted and the trails are clear. This period offers the most favorable "Alpine Lake weather conditions" for hiking and enjoying the lake's vibrant blue hues. Activities primarily revolve around hiking and backpacking, with opportunities to soak in the breathtaking views and experience the unique high-altitude ecosystem. Consider the "Alpine Lake seasonal considerations best time to visit" to ensure an optimal experience.

The journey to Alpine Lake often begins from the Iron Creek trailhead. From there, a trail leads approximately 5 miles (8.0 km) to Sawtooth Lake, with Alpine Lake situated just a short distance further. While some hikers choose to bypass Alpine Lake to conserve energy for Sawtooth Lake, many find the detour to Alpine Lake well worth the effort for its distinct charm and tranquil setting. This route offers a moderate challenge, making it accessible for experienced hikers.

Hikers often describe the profound quietness and the crisp mountain air as standout moments. The opportunity to witness the pristine wilderness, far from urban distractions, creates a truly memorable experience. The vibrant blue of the water, especially on a clear day, is frequently mentioned as a highlight, reflecting the surrounding peaks and sky. It's a place where you can truly disconnect and appreciate the raw beauty of Idaho's Sawtooth Mountains.

Discover a variety of "best hikes near Alpine Lake" and plan your visit with confidence. Whether you're looking for a challenging backpacking trip or a scenic day hike, komoot offers numerous routes to help you explore this magnificent alpine destination. You can find detailed maps and information for various hiking and trail running options, ensuring you make the most of your time in the Sawtooth National Recreation Area.

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Sawtooth Wilderness

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  • Location: Sawtooth National Recreation Area, Custer County, Idaho, United States

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    January 15, 2023

    Hiking

    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 here. To hike into the wilderness, you need to obtain a wilderness permit which is available at the trailhead.

    July 30, 2024

    Hiking

    … if you want to see Sawtooth Lake: save energy, don’t hike down to the lake

    July 30, 2024

    Hiking

    … if you want to include Sawtooth Lake on this hike, you can spare Alpine Lake …
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    Nearby routes

    Best routes near Alpine Lake

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    hikers

    #1.

    Sawtooth Lake via Iron Creek Trail

    7.76km

    02:31

    530m

    0m

    Embark on a moderate hiking adventure to Sawtooth Lake via Iron Creek Trail, a route that spans 4.8 miles (7.8 km) and climbs 1745 feet (532 metres) in elevation. You can expect to complete this journey in about 2 hours and 30 minutes. As you hike, you will pass through dense lodgepole pine forests, follow Iron Creek, and navigate switchbacks before reaching the stunning Sawtooth Lake, nestled beneath the impressive Mount Regan with its deep blue and turquoise waters. Keep an eye out for thin waterfalls and vibrant wildflowers like sego and paintbrush along the way. The terrain transitions from forested paths to more exposed, rocky sections as you gain elevation.

    To plan your visit, know that the trailhead is located approximately 5.5 miles from Stanley, Idaho. The best time to hike this trail is typically from July through September, as snow can persist at higher elevations earlier or later in the season. While the trailhead offers a pit toilet, remember there is no trash disposal or water source available, so pack out everything you bring in. If you are bringing your dog, be aware that they must be leashed between July 1st and Labor Day to protect the wilderness.

    This trail offers a rewarding experience within the vast Sawtooth Wilderness, a protected area known for its rugged beauty and pristine alpine environments. The prominent 10,190-foot Mount Regan serves as a dramatic backdrop to Sawtooth Lake, highlighting the region's impressive geological features. The diverse flora, from towering pines to seasonal wildflowers, adds to the natural appeal of this popular route. It is a prime example of the natural splendor that defines the Sawtooth Mountains.

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    Moderate
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    14

    hikers

    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, where you can spot towering pines and thin waterfalls, before opening up to offer expansive views of the Iron Creek Valley. The highlight is the stunning Alpine Lake, an emerald-green gem nestled in a granite bowl, with the impressive 9,787-foot Alpine Peak towering above.

    Planning your visit requires a bit of foresight, as this trail is very popular, especially during the summer months. The trailhead parking lot tends to fill up quickly, so an early start is often recommended. You will also need to pick up a free permit at the trailhead before entering the Sawtooth Wilderness. Dogs are welcome to join you on this adventure, but remember they must be kept on a leash, particularly between July 1st and Labor Day.

    This route is a fantastic day hike that provides direct access to the pristine beauty of the Sawtooth Wilderness. It is renowned for its dramatic mountain scenery and the crystal-clear waters of Alpine Lake, making it a standout destination in the region. The trail offers a rewarding experience for those seeking a classic alpine environment without an overly strenuous climb, making it a popular choice for many visitors to the area.

    Moderate
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    5.0

    (5)

    117

    hikers

    Hike the moderate 9.2-mile Iron Creek-Stanley Lake Trail, gaining 1740 feet to stunning alpine lakes and Sawtooth Range views.

    Moderate

    Details

    Informations

    Elevation 2,390 m

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    Max wind speed: 16.0 km/h

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    Location: Sawtooth National Recreation Area, Custer County, Idaho, United States

    Frequently Asked Questions

    Is Alpine Lake suitable for beginner hikers or families with young children?

    The primary trail to Alpine Lake from the Iron Creek trailhead is approximately 5 miles (8.0 km) one-way, with moderate difficulty. While it's a rewarding hike, it might be challenging for very young children or absolute beginners due to the distance and elevation gain. For families, consider shorter, less strenuous trails in the broader Sawtooth National Recreation Area, or ensure children are accustomed to longer hikes. There are no specific 'beginner' routes directly to Alpine Lake itself, but the area offers diverse options.

    Are dogs allowed on the trails to Alpine Lake?

    Yes, dogs are generally allowed on trails within the Sawtooth Wilderness, including the route to Alpine Lake. However, they must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all visitors. Please remember to pack out all pet waste.

    Do I need a permit to hike to Alpine Lake?

    Yes, Alpine Lake is located within the Sawtooth Wilderness, and a wilderness permit is required for all overnight and day use. These permits are free and self-issued at the trailhead registration boxes, such as at the Iron Creek trailhead. It's essential to fill one out before starting your hike.

    What are the parking options and how early should I arrive?

    The main access point is the Iron Creek trailhead, which has a parking area. Due to the popularity of the Sawtooth Wilderness, especially during peak season (late summer to early autumn), parking can fill up quickly. It's highly recommended to arrive early in the morning, ideally before 8:00 AM, to secure a spot, particularly on weekends.

    Can I visit Alpine Lake during winter, and what are the conditions like?

    Alpine Lake can remain frozen into early summer due to its high elevation (7,828 feet / 2,386 meters). Winter visits are possible but require significant experience, proper gear (snowshoes, skis, or microspikes), and awareness of avalanche risks. Trails will be snow-covered and often unmarked. It's a challenging and remote winter destination best suited for experienced backcountry enthusiasts.

    Are there any amenities like cafes, restaurants, or accommodation near the trailhead?

    Alpine Lake is in a remote wilderness area. The nearest services, including limited cafes, restaurants, and accommodation options, can be found in the town of Stanley, approximately 6.3 miles (10.1 km) northeast of the Iron Creek trailhead. It's advisable to stock up on supplies and make any accommodation arrangements before heading to the trailhead.

    Is wild swimming permitted in Alpine Lake?

    While there are no explicit prohibitions against swimming, Alpine Lake's waters are extremely cold, even in late summer, due to its high-altitude glacial origins. Swimmers should exercise extreme caution due to the low water temperatures and potential for hypothermia. Always prioritize safety and be aware of your limits in cold water.

    What makes the water in Alpine Lake so clear and blue?

    The striking clarity and vibrant blue or turquoise color of Alpine Lake are characteristic of many alpine lakes. This is often due to several factors: the lack of significant algal growth because of cold temperatures and low nutrient runoff, minimal sediment input from its steep, undeveloped watershed, and in some cases, the presence of finely ground rock particles (rock flour) suspended in glacial meltwater that reflect light.

    Are there any loop trails that include Alpine Lake?

    While the most common route to Alpine Lake is an out-and-back from the Iron Creek trailhead, many hikers combine it with a visit to the nearby Sawtooth Lake, which is less than half a mile southwest. This can be part of a longer backpacking loop within the Sawtooth Wilderness, connecting various lakes and passes. However, a direct loop trail *around* Alpine Lake itself is not a prominent feature; it's typically visited as a point on a larger route.

    What are some notable natural features or viewpoints around Alpine Lake?

    Alpine Lake itself is a significant natural feature, renowned for its pristine waters and dramatic setting. To its south, Alpine Peak rises prominently at 9,861 feet (3,006 meters), offering a stunning backdrop. The proximity to Sawtooth Lake, another iconic alpine destination, also makes the area rich in breathtaking mountain vistas and opportunities to explore the unique high-altitude ecosystem.

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