Best lakes in Stephen Mather Wilderness are found within the rugged terrain and glaciated peaks of the North Cascades National Park Complex in Washington State. This wilderness area is characterized by its diverse natural landscape, including numerous lakes that offer varied experiences. The region features a mix of large reservoirs and smaller alpine lakes, often set against dramatic mountain backdrops. These natural features provide opportunities for exploration and observation of the area's geology and ecosystems.
Last updated: May 1, 2026
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The East Bank Trail starts out following along Ruby Creek towards Ross Lake. It eventually turns away from the creek and heads up the east shore of the lake. Along the way you will pass by a number of campsites and view points. This trail connects with many others in the area and is great for an easy day hike or longer multi-day excursions.
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This is a lovely, peaceful little forest walk where the journey is half the destination. The lake is pond sized and surrounded by large boulders. It is pretty in its own way, a quiet lake with beautiful reflections, yellow water lilies and silvered logs floating on the surface. The tufts of grass and moss growing on the floating logs create a small ecosystem that can be observed up close.
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This is a lovely, peaceful little forest walk where the journey is half the destination. The lake is pond sized and surrounded by large boulders. It is pretty in its own way, a quiet lake with beautiful reflections, yellow water lilies and silvered logs floating on the surface. The tufts of grass and moss growing on the floating logs create a small ecosystem that can be observed up close.
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Hidden Lake is a true gem in the beautiful North Cascades. This location offers a panoramic view over the towering mountains like Hidden Lake Peak and The Triad. The nearby fire lookout makes the picture postcard view even more perfect. If you plan to spend the night, you can find some scenic, but rough spots next to the lake.
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Howard Lake is an idyllic lake at the base of Mount McGregor. If you want to take a break here, find the best spot is at the west side at a flat shaped boulder.
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The remote Thornton Lakes consists of three magical alpine lakes: Lower, Middle and Upper Thornton Lake that are surrounded by the beauty and peaks of the Northern Cascades. Enjoy the views towards Mount Triumph, the Picket Range and dramatic glaciers. If you like to stay overnight at Lower Thornton Lake, obtain a backcountry permit at the ranger station in Marblemount.
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Up, up, up – over 3.7 miles (out and back) the Pyramid Lake Trail will take you directly up the mountain to the idyllic Pyramid Lake.
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The Stephen Mather Wilderness features a diverse range of lakes, including large reservoirs like Ross Lake and Diablo Lake, known for their recreational opportunities, as well as smaller, more secluded alpine lakes such as Hidden Lake and Blue Lake. You'll also find forest-enclosed lakes like Pyramid Lake, offering varied natural settings.
Yes, there are family-friendly options. Blue Lake, for instance, offers a relatively short and moderate hike with a significant scenic payoff, making it suitable for families. The East Bank Trail, which follows Ruby Creek towards Ross Lake, also provides an easy day hike option with viewpoints.
Diablo Lake is renowned for its striking, milky turquoise color, especially vibrant on sunny days, with the Diablo Lake Vista Point offering breathtaking panoramic views. Hidden Lake & Lookout provides panoramic views over towering mountains and a historic fire lookout. Blue Lake also offers iconic scenery with its turquoise water and dramatic mountain backdrop, particularly stunning with golden larches in autumn.
You can enjoy a variety of activities. Ross Lake is excellent for boating, paddling, and fishing, with numerous trails branching off for hiking. Diablo Lake is popular for kayaking and canoeing. Many lakes offer hiking opportunities, from easy walks to challenging alpine treks. For more detailed routes, explore the hiking trails or running trails available in the region.
For those seeking an overnight wilderness experience, Thornton Lakes & campsite offers backcountry camping, though a permit from the ranger station in Marblemount is required. The area around Hidden Lake is also a cross-country zone allowing for dispersed, minimum-impact camping with a backcountry permit. Ross Lake provides boat-in campsites.
The best time to visit is generally from late spring through early fall. Summer offers the most accessible conditions for boating, paddling, and hiking, with Diablo Lake's glacial color being most vibrant. Autumn, particularly October, is spectacular for Blue Lake when the golden larch trees reflect in its waters. Snow can linger on higher elevation trails into late summer.
Yes, several lakes offer good fishing opportunities. Ross Lake is known for rainbow and bull trout. Diablo Lake and Gorge Lake both have rainbow, eastern brook, and cutthroat trout. Blue Lake also contains rainbow trout. For specific regulations and license requirements, you can consult the National Park Service's fishing information: nps.gov/noca/planyourvisit/fishing.htm.
Diablo Lake is famous for its striking, milky turquoise color. This distinctive hue is a result of 'glacial flour' – fine rock particles suspended in the water, carried down from surrounding glaciers. The color is particularly vibrant on sunny days, creating a breathtaking visual against the rugged mountain backdrop.
Yes, there are easier options. The Blue Lake trail is a relatively short and moderate out-and-back hike. The Pyramid Lake Trail offers a peaceful forest walk to a pond-sized lake. Additionally, the Easy Hikes in Stephen Mather Wilderness guide lists routes like the Ross Dam Trail and Howard Lake via Pacific Crest Trail, which are considered easy.
Howard Lake is an idyllic lake situated at the base of Mount McGregor. Visitors particularly appreciate a flat-shaped boulder on its west side, which provides a perfect spot to take a break and enjoy the peaceful surroundings.
Thornton Lakes consists of three magical alpine lakes: Lower, Middle, and Upper Thornton Lake. They are surrounded by the stunning peaks of the Northern Cascades, offering views towards Mount Triumph, the Picket Range, and dramatic glaciers. If you plan to stay overnight at Lower Thornton Lake, you must obtain a backcountry permit at the ranger station in Marblemount.
Yes, the area around Hidden Lake features a historic fire lookout, which adds to the picturesque views of the surrounding mountains. Ross Lake also has trails leading to historic fire lookouts like Desolation Peak, famously associated with Jack Kerouac.


Still not found your perfect lake in Stephen Mather Wilderness? Check out the guides of these regions to see even more beautiful places.