North Cascades Trail & Visitor Guide
North Cascades · United States · About 504,000 acres (roughly 789 square miles) for the national park itself. The broader North Cascades National Park Service Complex, which also includes Ross Lake and Lake Chelan National Recreation Areas, totals about 684,000 acres.
Why Visit North Cascades
North Cascades National Park contains more than 300 glaciers — over a third of all glaciers in the contiguous United States. The park's 504,781 acres of dramatic alpine scenery include peaks exceeding 9,000 feet, deep valleys, and over 500 miles of trails. Despite being only three hours from Seattle, it is one of the least visited national parks, receiving fewer annual visitors than Yellowstone gets in a single day.
Free North Cascades Audio Guide with Roamee Pro
Roamee Pro offers a free, self-guided North Cascades audio guide. It narrates trails, viewpoints, geology, and wildlife as you explore — Diablo Lake Overlook, Cascade Pass Trail, Thunder Knob Trail, plus quieter spots like Thornton Lakes Trail and Hidden Lake Trail. No guide, no schedule, works offline.
explore by interest
Signature Trails
- Maple Pass Loop7.2 miles round trip · Moderate-strenuous, about 2,000 ft gain
Loop past Lake Ann with views over Rainy Lake and surrounding peaks; larch trees turn gold in late September and early October.
- Cascade Pass7.4 miles round trip to the pass · Moderate, about 1,800 ft gain over roughly 35 switchbacks
Glacier and peak views; can extend to Sahale Arm and Sahale Glacier Camp for a strenuous ~12 mile day with roughly 4,000 ft gain.
- Thunder Knob3.6 miles round trip · Easy, about 425 ft gain
Overlooks of turquoise Diablo Lake; a family option from a trailhead near Colonial Creek Campground.
- Blue Lake4.4 miles round trip · Easy-moderate, about 1,050 ft gain
Alpine lake beneath Liberty Bell and the Early Winters Spires; trailhead off Highway 20 near Washington Pass.
- Hidden Lake Lookout8 miles round trip · Strenuous, about 3,300 ft gain
Fire lookout with 360-degree views of the high peaks; the final stretch is rocky and may hold snow into July.
Must-See in North Cascades
- •Diablo Lake Overlook — a viewpoint over a stunningly turquoise lake colored by glacial flour
- •Cascade Pass Trail — a 7.4-mile round trip to a historic mountain pass with views of glaciers and peaks
- •Thunder Knob Trail — a 3.6-mile round trip to panoramic views over Diablo Lake and surrounding peaks
- •Ross Lake — a 24-mile-long reservoir surrounded by wilderness accessible only by boat or trail
Best Viewpoints
- •Diablo Lake Overlook on Highway 20 (milepost ~132), with the lake's glacial-flour turquoise color
- •Washington Pass Overlook (elevation ~5,477 ft) looking at Liberty Bell Mountain and the Early Winters Spires
- •Sahale Arm above Cascade Pass for glacier and valley panoramas
- •Hidden Lake Lookout for a 360-degree summit view
- •Gorge Creek Falls overlook on Highway 20
Quieter Corners of North Cascades
- •Thornton Lakes Trail — a 10.4-mile round trip to alpine lakes beneath Trappers Peak with few other hikers
- •Hidden Lake Trail — an 8-mile round trip to a fire lookout at 6,890 feet with panoramic views of glaciated peaks
Wildlife You May See
Entrance Fee
No entrance fee for the national park. A Northwest Forest Pass ($5/day or $30/year) or America the Beautiful interagency pass ($80/year) is required to park at some trailheads in the surrounding Mt. Baker-Snoqualmie and Okanogan-Wenatchee National Forests. A wilderness permit is required for overnight backcountry camping; permits are reserved through Recreation.gov, which charges a reservation fee.
Getting There
Most visitors drive State Route 20, the North Cascades Highway, which runs east-west through the complex. It is about 2.5-3 hours northeast of Seattle (roughly 110-130 miles to the Newhalem/Diablo area). The North Cascades Visitor Center is at Newhalem. The highway's high section between Ross Dam and Mazama closes seasonally for winter (typically late November through April or May) due to snow and avalanche danger; check WSDOT for current status. There is no public transit and no fuel between Marblemount (west) and Mazama/Winthrop (east), so fill up beforehand.
Where to Stay
Inside the complex: Colonial Creek, Newhalem Creek, and Gorge Lake campgrounds along Highway 20 (reservable in summer via Recreation.gov). Ross Lake Resort offers floating cabins accessible only by boat or trail. Backcountry camping requires a wilderness permit. Gateway towns: Marblemount and Concrete to the west; Winthrop and Mazama in the Methow Valley to the east have lodges, inns, and motels. Many visitors base in Winthrop (about 30-45 minutes east of Washington Pass) when the highway is open.
Best Time
Late July through September offers the most reliable trail access after snowmelt, with peak alpine wildflowers in late July to August. Late September to early October brings the golden larch color around Maple Pass and Blue Lake. The high section of Highway 20 is typically closed late November through April or May.
Safety
The top hazard is steep, glaciated, exposed terrain combined with rapidly changing mountain weather; snow lingers on high trails into July and storms can hit any month. Carry the ten essentials, check trail and snow conditions, and turn around when weather deteriorates. Black bears are present, so store food in provided lockers or bear canisters and never leave food unattended. River and lake water is glacially cold; do not attempt to wade or swim across currents. In winter and shoulder seasons, the high portion of Highway 20 is closed for avalanche control. Cell service is unreliable to nonexistent across most of the park.
Scenic Drives
- •State Route 20 (North Cascades Highway) from Newhalem east over Rainy Pass and Washington Pass to Mazama, passing the Diablo Lake and Gorge Creek Falls overlooks
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