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6.28km
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Hiking
The Hidden Lake Lookout Trail offers a moderate hiking experience through the Mount Baker-Snoqualmie National Forest. You will cover 3.9 miles (6.3 km) with 0 feet (0 metres) of elevation gain, typically taking about 2 hours and 10 minutes to complete. The route begins in a dense forest, gradually opening…
Last updated: April 23, 2026
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170 m
Highlight • Viewpoint
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6.28 km
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6.28 km
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6.17 km
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This route was planned by komoot.
This trail is generally rated as Moderately Strenuous to Hard, or even 'Black Diamond'. It involves a significant elevation gain of approximately 2,900 to 3,300 feet over 8.2 to 9 miles roundtrip. The final ascent to the lookout requires a scramble over boulders, and snow patches can persist well into summer, sometimes requiring an ice axe into July.
The trail offers diverse terrain. It begins in a dense forest, crosses Sibley Creek multiple times, then opens into meadows with wildflowers. As you ascend, it becomes rockier with granite slabs and heather-covered slopes. Be prepared for potential snowfields and stream crossings, and a final boulder scramble to reach the lookout.
Hikers are treated to continuously evolving views of the North Cascades, including peaks like Mount Baker, Mount Shuksan, and Glacier Peak. A key highlight is the first glimpse of Hidden Lake itself, a deep blue alpine lake. The ultimate reward is the Hidden Lake & Lookout, offering 360-degree panoramic views from the historic fire lookout.
No, dogs are not permitted on the Hidden Lake Lookout Trail as it is located within North Cascades National Park. National Park regulations generally prohibit pets on trails to protect wildlife and natural resources.
The best time to hike is typically from mid-July through September. Before mid-July, significant snow patches can make the trail more challenging and potentially require an ice axe. Wildflowers are usually abundant in the meadows during the summer months.
The Hidden Lake Lookout Trail is located within North Cascades National Park, which does not charge an entrance fee. However, you may need a Northwest Forest Pass or America the Beautiful Pass for parking at the trailhead, as it is managed by the U.S. Forest Service within the Mount Baker-Snoqualmie National Forest. Always check the latest regulations on the NPS website and USDA Forest Service website before your trip.
The trailhead is accessed via a road that can be rough, steep, and prone to washouts. A high-clearance vehicle is often recommended, especially earlier in the season. Parking is available at the trailhead, but it can fill up quickly on busy days. Check the Forest Service website for current road conditions before heading out.
Yes, the historic fire lookout at the summit is available for overnight stays on a first-come, first-served basis. It's a unique opportunity, but be prepared for primitive conditions and pack out everything you pack in. Always check with the Forest Service for current regulations and availability.
Yes, the route primarily follows the Hidden Lake Trail for its entire length. A small portion of the access road is also part of Forest Road 1540.
The Hidden Lake Lookout Trail is recognized as one of the "100 Classic Hikes of Washington" due to its remarkable variety of ecosystems—from dense forest to alpine granite—and the unparalleled panoramic views from the summit. The historic fire lookout also adds a unique cultural element to the experience.
Given its 'Moderately Strenuous to Hard' rating, significant elevation gain, and technical sections like boulder scrambles and potential snowfields, this trail is not recommended for beginners or young children. It requires a good level of fitness and some hiking experience.