Highlight • Lake
Road cycling
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Alturas Lake is a pristine alpine lake nestled in the heart of the Sawtooth Valley, within the expansive Sawtooth National Recreation Area in Blaine County, Idaho. Situated at an elevation of 2,138 meters (7,016 feet) above sea level, this glacial lake is the second largest in the Sawtooth National Recreation Area, offering exceptionally clear and cold waters. It lies at the base of the majestic Sawtooth Mountains, approximately 21 miles south of Stanley and 30 miles northwest of Ketchum.
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Sawtooth National Recreation Area
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February 5, 2024
Road cycling
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Elevation 2,140 m
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Saturday 14 March
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Alturas Lake offers several developed campgrounds with parking, such as Alturas Inlet, Smokey Bear, and North Shore. Many of these provide amenities like vault toilets. Parking can fill up quickly, especially during peak summer weekends, so arriving early is highly recommended. Generally, day-use parking at trailheads or picnic areas within the Sawtooth National Recreation Area does not require a specific permit beyond standard forest regulations, but always check for current signage or Forest Service updates.
Alturas Lake is a popular destination, particularly during the summer months and on weekends. While it's the second-largest lake in the Sawtooth National Recreation Area, its easy access and numerous activities attract many visitors. Parking lots, especially at popular trailheads and campgrounds, can fill up by mid-morning. For a more tranquil experience, consider visiting on weekdays or during the shoulder seasons (late spring, early fall).
Yes, Alturas Lake and the surrounding Sawtooth National Recreation Area are generally dog-friendly. However, pets must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all visitors. Always pack out pet waste. Specific rules may apply in certain developed areas or on designated trails, so look for signage.
Alturas Lake is excellent for families. Easy walks along the northern shore are popular, offering scenic views and access to picnic areas. Camping at one of the developed campgrounds is a great family activity. For hiking, look for shorter, less strenuous trails. The lake itself is ideal for canoeing, kayaking, and fishing, providing gentle water activities for all ages.
Yes, Alturas Lake offers several options suitable for beginners or those looking for a leisurely walk. The paths around the northern shore provide relatively flat terrain with beautiful lake views. While the 10-mile Alpine Meadows Trail is mentioned, shorter sections or other less-trafficked paths can be found. Always check trail descriptions for elevation gain and length to match your comfort level.
During winter, Alturas Lake transforms into a snowy wonderland, making it a prime spot for Nordic skiing and snowshoeing. The area boasts one of the best groomed Nordic trail systems in the Stanley Basin, offering routes for various skill levels. It's a fantastic destination for enjoying the serene, snow-covered landscape.
Given Alturas Lake's alpine elevation of 7,016 feet (2,138 meters), weather can change rapidly. Layering is key. Even in summer, evenings can be cool, so bring a jacket. For hiking, sturdy shoes are essential. In winter, waterproof and insulated clothing, hats, gloves, and appropriate footwear for snow are crucial. Always check the local forecast before your visit.
Alturas Lake is within the Sawtooth National Recreation Area, which is primarily wilderness. While there are campgrounds at the lake, you'll need to travel to nearby towns for more extensive amenities. Stanley, approximately 21 miles north, and Ketchum/Sun Valley, about 30 miles southeast, offer a range of cafes, restaurants, grocery stores, and accommodation options.
Swimming is permitted in Alturas Lake. However, be prepared for very cold water. As a glacial lake at 7,016 feet elevation, its waters are exceptionally clear but remain cold even in summer. Temperatures can be around 40 degrees Fahrenheit (approximately 4 degrees Celsius) even in early July. Always exercise caution when swimming in cold water.
The Alturas Lake area is rich in wildlife. Visitors might spot various bird species, including waterfowl on the lake. Larger mammals such as deer, elk, and even black bears or moose can be present, especially in more secluded areas. Always maintain a safe distance from wildlife and store food properly, particularly when camping, to avoid attracting animals.
Beyond the stunning lake itself, Alturas Lake is nestled at the base of the dramatic Sawtooth Mountains, providing breathtaking panoramic views. The clear, oligotrophic waters offer exceptional clarity. For a broader perspective of the region, the Galena Summit Overlook on State Highway 75 provides an excellent vantage point of the Sawtooth Mountains and the headwaters of the Salmon River.