How long is the North Cascades Highway road trip?

Marblemount → Winthrop, WA (WA-20) — about ~75 miles, comfortably done in half day.

What are the best stops on the North Cascades Highway?

Signature stops include Diablo Lake Overlook, Washington Pass Overlook, Rainy Lake, Winthrop — and Roamward maps the hidden gems near the route in each state.

Roamward

Scenic route

North Cascades Highway

WA-20 cuts through the jagged, glacier-hung peaks of North Cascades National Park — turquoise reservoirs, hanging glaciers, and overlooks that feel airlifted from the Alps.

Marblemount → Winthrop, WA (WA-20) · ~75 miles · half day

Why drive it

The “American Alps” by car.

Closed in winter by avalanche danger; best summer through fall. Diablo Lake’s glacial blue is the signature stop, and Washington Pass frames the Liberty Bell spires.

States on this route

The signature stops

What to pull over for.

01Diablo Lake Overlookelectric-turquoise glacial water below the peaksWA 02Washington Pass Overlooka 5,477-ft pass under the Liberty Bell groupWA 03Rainy Lakea short paved trail to a cirque lakeWA 04Winthropan Old-West themed town on the dry east sideWA

Plan the drive

Build your North Cascades Hwy trip.

Roamward turns the route into a real itinerary — the scenic line, the gems worth a detour in every state, and where to stay. Join early access for the iOS beta.

All routes

Build a trip around a drive like this.

Roamward turns spots like this into a real road trip on your phone — the scenic drive, the stops, and the detours, planned around the vibe you’re after. Get early access:

North Cascades Highway

The “American Alps” by car.

What to pull over for.

Build your North Cascades Hwy trip.

Build a trip around a drive like this.

More to explore in Washington

National parks

Forests & wild lands

Camping

Ballparks

Lighthouses

More Washington guides