The American Alps in One Big Circle

The Cascade Loop, designated a National Scenic Byway in 2021, is the Pacific Northwest's answer to the great European mountain drives: a 440-mile circuit that crosses the Cascade Range twice and comes home across the sea. Its crown is the North Cascades Highway, threading a national park nicknamed the American Alps for its 300-plus glaciers and sawtooth granite, where the overlook at Washington Pass stares up at the Liberty Bell spires and Diablo Lake glows an unreal turquoise from glacial flour. But the loop's genius is its variety. In a few days you pass from Puget Sound tidewater through temperate rainforest, over a ski pass to a Bavarian-styled village in the pines, into sagebrush orchard country along the Columbia, up a 50-mile fjord of a lake, through an Old West valley of boardwalks and horse ranches, over the wild heart of the range, and down a farm valley famous for April tulips, finishing with a bridge over churning tidal narrows and a ferry ride home. The mountain crossing sleeps under avalanche snow all winter, which only sharpens the reward of driving it in season.

Key Stops

Everett and Mukilteo. The traditional start on Puget Sound, where aviation fans can tour the world of Boeing's wide-bodies at the Future of Flight center before the road turns toward the mountains.

The Skykomish Valley and Stevens Pass. US 2 climbs through moss-green forest past the climbing hamlet of Index, the boardwalked cascades at Deception Falls, and the trailhead for Wallace Falls, cresting at the Stevens Pass ski area. This is the gentler of the loop's two crossings, and lovely in any weather.

Leavenworth. A former timber town that reinvented itself in the 1960s as a full-dress Bavarian village, and made it work: beer halls, bratwurst, alpine facades, and genuinely superb surroundings on Icicle Creek. Oktoberfest and the Christmas lighting are joyous madhouses; book far ahead.

Cashmere and Wenatchee. The east slope opens into apple country along the Columbia River, with fruit stands, the Pybus Public Market, and the terraced Ohme Gardens overlooking the valley. The sun statistically comes out here.

Lake Chelan. A glacier-dug lake running 50.5 miles into the mountains, the third deepest in the United States, with wineries and beaches at its sunny foot. The essential move is the Lady of the Lake boat (or a floatplane) up-lake to Stehekin, a roadless community reachable only by water, air, or trail; overnight there if you can.

The Methow Valley and Winthrop. SR 20 follows a ranching valley to Winthrop, which leaned into its frontier past with wooden boardwalks and false-front stores, and did it charmingly. The valley hosts North America's largest cross-country ski trail network in winter; Mazama, up-valley, is the last coffee and fuel before the high country.

Washington Pass Overlook. At 5,475 feet, the loop's signature view: the granite towers of Liberty Bell Mountain and the Early Winters Spires above a hairpin sweeping through the scree far below. A short paved path leads to the overlook; in early October the larches around it turn gold.

Rainy Pass. A few miles on, the Pacific Crest Trail crosses the road amid some of the state's most loved day hikes: the Maple Pass loop, Blue Lake, and the accessible paved trail to Rainy Lake. Trailheads here are the busiest in the range in larch season.

Diablo and Ross Lakes. Descending west, the road enters the Ross Lake National Recreation Area at the heart of North Cascades National Park. The Diablo Lake overlook is the postcard: milky-turquoise water beneath glacier-hung peaks, at its most vivid in mid-to-late summer melt. Short walks at Thunder Knob and Ross Dam stretch the legs.

Newhalem and the Gorge. A tidy company town for the Skagit hydroelectric project, with the park visitor center, the Trail of the Cedars, and Gorge Falls viewpoints. The dams here light Seattle, and the story is well told.

The Skagit Valley. The mountains release you into farm country: eagle-watching river bars near Rockport and Marblemount (hundreds of bald eagles gather in winter), organic farm stands, the cement-town quirk of Concrete, and, every April, the tulip fields around Mount Vernon and the gallery village of La Conner in full color.

Deception Pass and Whidbey Island. The finale crosses the vertiginous 1935 bridge over Deception Pass, where tidal currents boil far below, then runs down Whidbey Island through Coupeville (Penn Cove mussels, a historic waterfront) and the bluff walks of Ebey's Landing to the Clinton ferry, a 20-minute crossing that closes the circle at Mukilteo.

Driving Tips

Plan around the winter closure. The North Cascades Highway closes between the Ross Dam trailhead and the Silver Star gate from roughly late November to late April or early May; unlike Stevens Pass, this stretch gets no avalanche control, so it simply shuts. Check WSDOT's status page for shoulder-season trips.

Mind the 70-mile service gap. Between Marblemount and Mazama there is no fuel, no food, and long stretches of no cell coverage. Fill the tank, download offline maps, and carry water and snacks over the passes.

Carry the right parking passes. North Cascades National Park itself is free, a rarity, but Forest Service trailheads like Blue Lake and Maple Pass require a Northwest Forest Pass or America the Beautiful pass, and Deception Pass State Park requires a Discover Pass. Buy them in advance and the whole loop is friction-free.

Treat larch season like a holiday weekend. The first half of October draws crowds to the golden larches at Rainy and Washington Passes; trailhead lots overflow by 8 am on weekends. Go midweek, start early, and have a second hike in mind.

Reserve the Stehekin boat. The Lady of the Lake fills in July and August. Day trips are possible, but an overnight up-lake, with the valley shuttle to Rainbow Falls and the famous bakery, is the loop's best detour.

Watch for wildlife at the edges of the day. Deer are everywhere on the loop, and black bears frequent the park corridor; dusk on SR 20 and the Methow back roads calls for gentle speeds.

Time Diablo Lake for midday. The turquoise is glacial rock flour catching the light, strongest under high sun in mid-to-late summer. The overlook underwhelms in flat morning shade and stuns at noon.

For more information visit: Cascade Loop National Scenic Byway