North Cascades National Park, Washington: Visitor Guide

North Cascades National Park in northern Washington State protects one of the most rugged mountain landscapes in the lower 48 United States: jagged granite peaks, more than 300 glaciers, turquoise reservoirs and old-growth forest, only a few hours' drive from Seattle. It is also one of the least visited national parks in the country, with about 30,000 recorded visitors in 2022, because most of it has no roads. Visitors see it mainly from the North Cascades Highway (State Route 20), from short trails off that road, and from longer backcountry routes.

This guide explains how the park is organised, what you can see from the highway in a day, which hikes suit which fitness level, when the road is open, and where to stay. If you are planning a wider trip, our United States page lists other destinations, and our guide to beach camping in the USA covers coastal alternatives in summer.

North Cascades National Park: essential facts at a glance (as of October 2026)

• Established: 2 October 1968
• Size: About 504,654 acres; about 789,000 acres with Ross Lake and Lake Chelan recreation areas
• Glaciers: More than 300, the most of any US park outside Alaska
• Entrance fee: No park entrance fee; some trailheads on national forest land need a recreation pass
• Highway 20: Closed to vehicles each winter, typically mid-November to late April or May
• Visitor centre: North Cascades Visitor Center near Newhalem, around milepost 120
• Nearest major airport: Seattle-Tacoma International (SEA)
• Entry to the US: ESTA or visa depending on your passport; check official US government sites

How North Cascades National Park is laid out

The National Park Service manages the area as the North Cascades National Park Service Complex, made up of three units. The national park itself has a north and a south unit, divided by the Ross Lake National Recreation Area, which follows the Skagit River and State Route 20. Lake Chelan National Recreation Area, at the southern end, includes the remote village of Stehekin.

That layout matters because nearly every famous viewpoint along the highway, including Diablo Lake and Ross Lake, is technically in the recreation area, while the national park proper is wilderness reached only on foot. A day on the highway shows you the scenery; the deep park needs a trail.

The only road through the complex is State Route 20, the North Cascades Highway, running west to east from Marblemount past Newhalem, Diablo and Ross lakes, then over Rainy and Washington passes to Mazama and Winthrop in the Methow Valley. The west side is wetter and greener, with dense forest and big rivers; the east side, beyond the passes, is drier and sunnier, with larch, pine and open slopes. That contrast means the weather can be grey at Newhalem and clear at Washington Pass on the same day.

Best things to see in North Cascades National Park

The best things to see in North Cascades National Park are the turquoise Diablo Lake from its overlook on Highway 20, the Newhalem visitor centre and Skagit River trails, the high viewpoints at Washington Pass and Rainy Pass, the hike to Cascade Pass, and the remote village of Stehekin at the head of Lake Chelan.

Diablo Lake Overlook

Diablo Lake is a reservoir on the Skagit River, and its milky turquoise colour comes from glacial flour, fine rock powder ground by glaciers and carried into the lake by meltwater. The overlook on Highway 20, east of Newhalem, gives the classic view across the water to Colonial and Pyramid peaks.

It is an easy roadside stop with parking and toilets, and 20 to 40 minutes covers it, so it works for anyone in the car. Midday in summer is busy; arrive in the morning for softer light and fewer cars. Kayaking on the lake is popular from the Colonial Creek campground area when the wind is calm.

The colour is strongest on sunny summer days when meltwater is high.

Newhalem and the Skagit River trails

Newhalem is a small company town built for the Seattle City Light hydroelectric dams. The North Cascades Visitor Center nearby, near milepost 120, has exhibits, rangers and short walks such as the boardwalk Sterling Munro trail with a view of the peaks. The Trail of the Cedars, short and flat, crosses a suspension bridge over the Skagit into a grove of old western red cedars.

Start your trip here, especially with children: rangers give current trail and road conditions, which change often after storms, and one to two hours is enough for the centre and a walk.

The visitor centre is usually open from late spring to early autumn, so check its dates outside summer.

Washington Pass and Rainy Pass

East of Ross Lake the highway climbs to Rainy Pass and Washington Pass. The Washington Pass Overlook gives a close view of Liberty Bell Mountain and the sheer granite of the Early Winters Spires. These passes lie just outside the national park in national forest land.

Rainy Pass is the trailhead for the Maple Pass Loop, one of the most loved day hikes in the state, especially in late September when larches turn gold. Hikers and photographers crowd the area then. A national forest recreation pass is required to park at some of these trailheads.

Cascade Pass

Roughly 7 miles round trip with significant elevation gain, the Cascade Pass trail climbs through forest switchbacks to a meadow pass surrounded by glaciers and peaks. For fit day hikers it is the most direct way to stand inside the national park's high country, and marmots, pikas and mountain goats are common sightings. The route is usually snow-free from July to early October.

The trailhead is at the end of the Cascade River Road from Marblemount, a gravel road that has been closed by washouts in some years. Check the National Park Service road status before driving out.

Stehekin and Lake Chelan

At the head of Lake Chelan, Stehekin can be reached only by boat, floatplane or on foot. Passenger ferries run from the town of Chelan up the lake. Once there, visitors stay in a lodge or cabins, walk to Rainbow Falls and hike into the park's southern valleys.

This is a place for slow travel and solitude. Plan two to three nights to make the trip worthwhile, and book accommodation and ferry tickets well in advance for summer.

The boat trip up the lake is a scenic part of the visit itself, and a shuttle bus runs up the valley from the landing in summer.

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North Cascades trips compared

Most visitors see the North Cascades in a day on the Highway 20 scenic drive, from late spring to autumn. Families add the short Newhalem trails; experienced hikers take the Maple Pass Loop or Cascade Pass from July to early October; and those with more time spend two or three nights in Stehekin or several days on backcountry routes with permits.

Ways to experience the park

The table shows the main trade-off: most visitors see the North Cascades from the highway in a day, while the park's wilderness rewards those who walk. The Maple Pass Loop, for example, is about 7.2 miles with around 2,000 feet of climbing and takes most hikers three to five hours; snow often lingers on the high section until late July. Cascade Pass is reached by the narrow, partly gravel Cascade River Road from Marblemount, which adds driving time. Seasons are short at altitude, and the highway's winter closure ends most east-side trips from mid-November until spring. If you have only one day, combine a short Newhalem walk with Diablo Lake and one of the pass overlooks.

A two-day North Cascades itinerary from Seattle

Two days from Seattle is enough for the North Cascades Highway. On day one, drive about two and a half hours to Newhalem for the visitor centre, Trail of the Cedars and Diablo Lake Overlook, then sleep at Colonial Creek or in Marblemount. On day two, hike the Maple Pass Loop early, stop at Washington Pass Overlook and continue to Winthrop.

Two days on the North Cascades Highway

• Day 1, Seattle to Newhalem and Diablo Lake: Drive north and east on I-5 and Highway 20. Visitor centre, Trail of the Cedars, then Diablo Lake Overlook. Camp at Colonial Creek or stay in Marblemount.
• Day 2, Rainy Pass, Washington Pass and Winthrop: Early start for the Maple Pass Loop, then the Washington Pass Overlook. Continue to the western-themed town of Winthrop, or return west.

The drive from Seattle to Newhalem takes around two and a half hours without traffic, via I-5 north to Burlington and then Highway 20 east; Marblemount is the last place on the west side for fuel and basic supplies. Start early on Day 1, as the visitor centre and overlooks get busier from late morning on summer weekends.

For Day 2, set off from your campsite or motel by about 7 a.m. to find parking at Rainy Pass, which fills early on fine weekends. If you continue to Winthrop, you can return to Seattle on a loop via Highway 2 and Stevens Pass, a longer but varied drive, or spend a night in the Methow Valley. In late September, when the larches turn gold, this itinerary is at its best, but also at its busiest.

Where to stay near North Cascades National Park

Lodging inside the park is limited. Campgrounds along Highway 20, including Colonial Creek, Newhalem Creek and Goodell Creek, are the main options in the recreation area, and some take reservations in summer. On the west side, Marblemount and Concrete have small motels and cabins. On the east side, Winthrop and Mazama in the Methow Valley offer lodges and inns. Stehekin has a lodge and rental cabins. Book early for July to September.

Choose your base by the side of the park you plan to explore. Staying in Marblemount or Concrete puts Newhalem and Diablo Lake within an easy drive and suits a west-side focus; services are limited, so buy groceries in Burlington or Sedro-Woolley on the way. Winthrop and Mazama are better for the passes, the Maple Pass Loop and east-side hiking, with more restaurants and a livelier main street in Winthrop. Ross Lake Resort's floating cabins are reached only by trail and boat, and book up far ahead. Campgrounds along Highway 20 have no hook-ups and limited water in some loops, so check facilities when booking. Outside summer, many places close or reduce services when the highway shuts for winter.

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Backcountry and lesser-known corners

The quieter corners of North Cascades National Park include the multi-day Copper Ridge Loop for experienced backpackers with a wilderness permit, Ross Lake with its floating cabins reached by trail or water taxi, the short family-friendly Thunder Knob Trail above Diablo Lake, and Winthrop, the western-style town at the east end of the highway.

• Copper Ridge Loop. A multi-day loop in the north unit with ridge-top views of glaciated peaks, suited to experienced backpackers. Requires a wilderness permit.
• Ross Lake. A long reservoir reached by trail from the highway or by water taxi; the Ross Lake Resort floating cabins sit at its southern end. Paddlers and anyone wanting a quiet stay come here.
• Thunder Knob Trail. A short trail near Colonial Creek with views over Diablo Lake, easy enough for families.
• Winthrop. A western-style town at the east end of the highway, with restaurants and lodging, and the usual overnight stop on the east side.

For backcountry trips, wilderness permits are issued by the National Park Service, with a portion available by advance reservation and the rest in person at the Wilderness Information Center in Marblemount; check current rules and fees well before your trip. Many backcountry routes require fording streams and crossing snow early in summer, so experience and proper gear matter. Ross Lake's water taxi is run by the resort and must be booked ahead.

Best time to visit North Cascades National Park and the Highway 20 winter closure

The park's season is set by one road. State Route 20, the North Cascades Highway, is the only road across the range, and its mountain section closes every winter between the Ross Dam trailhead at milepost 134 on the west side and the Silver Star gate at milepost 171 near Mazama on the east. Newhalem, the visitor center and the Diablo Lake area stay reachable from the west for most of the year, but Rainy Pass, Washington Pass and the through-route to the Methow Valley do not.

North Cascades season by season

The reopening date is the one to watch if you plan a spring trip. WSDOT clears the road each spring and announces the date only when crews are sure, and storm damage can push it back a long way: after flood damage in December 2025 and a spring rockslide, the highway did not fully reopen until 14 June 2026, the latest opening since 1974. The autumn closure is called when snow and avalanche danger make the pass unsafe, which in most years happens during November but can come earlier after a big storm.

For most visitors the best window is mid-July to the end of September: the road is open, the high trails are clear and the lakes reach their brightest turquoise as glacial meltwater peaks. Check the WSDOT North Cascades Highway page and the park's road and trail conditions page in the week before you go, and keep a plan B on the west side in case a late closure catches you.

Safety and practical tips for North Cascades National Park

Before you go: Highway 20 closes for winter between the Ross Dam area and Mazama, usually from mid-November until late April or May. Closure and reopening dates change every year; check the Washington State Department of Transportation before travelling.

There is very little mobile coverage in the park. Download maps, carry the Ten Essentials, and tell someone your route.

• Fill up first. Fuel stations are scarce between Marblemount and Mazama. Fill the tank before the mountain section.
• Check trailhead passes. There is no park entrance fee, but some trailheads on national forest land require a recreation pass.
• Store food properly. Black bears live in the park. Use food lockers at campgrounds and bear canisters where required.
• Get permits. Overnight backcountry camping needs a wilderness permit from the National Park Service.
• Join a tour. Prefer not to drive? See our tour listings for guided options from Seattle.

Weather changes quickly in the mountains, so carry rain gear even on clear mornings.