The Cascades split Washington clean in half. West of the crest, you get dense forest, saltwater, and the kind of overcast that makes you glad you packed a base layer. East of the crest, the sky opens, the ponderosa pines thin out, and the road straightens into wheat-covered plateau before tightening again at the canyon rims. Most states give you one kind of riding. Washington gives you four or five, often in a single day.

The North Cascades

If you do one road in Washington, it's the North Cascades Highway (WA-20). Sedro-Woolley to Winthrop, roughly 140 miles over Rainy Pass (4,862 ft) and Washington Pass (5,477 ft). The road closes every winter under snowpack, and in 2025–26 significant storm damage and a rockslide near Diablo Lake kept the central section closed into spring. As of June 14, 2026, WSDOT confirmed the highway is fully open. Worth checking conditions before you head up — rockfall and deer are both real hazards through the corridor.

Pull off at the Washington Pass Overlook for the Liberty Bell Mountain view, and don't skip Diablo Lake Overlook at milepost 131.7 — the turquoise water from glacial flour is most vivid on a sunny July or August day. Both stops are right on the highway.

On the western approach, Mount Baker Highway (WA-542) branches northeast from Bellingham and climbs 57 miles to Artist Point at 5,140 ft. It typically opens in late July when the snow at the top clears, and closes by October. The upper section has genuine hairpins; the lower stretch follows the North Fork Nooksack River through canyon curves that riders find rewarding even when the summit is fogged in.

A quieter connector on the eastern side: Methow Valley Highway (WA-153), 31 miles of two-lane running the Methow River valley from Pateros north to Twisp. Light traffic, no signals, a clean transition from high-desert shrub-steppe to ponderosa pine. It pairs well with WA-20 as part of the larger Cascade Loop circuit.

The Rainier Circuit

South of the North Cascades, Washington's mountain passes stack up differently. Chinook Pass (WA-410) crests at 5,430 ft and runs 95 miles from the Naches valley to Enumclaw through old-growth forest and subalpine meadows. The road carries a National Scenic Byway designation. At the summit, Tipsoo Lake sits in a glacier-carved basin with Mount Rainier filling the western skyline — wildflowers peak there mid to late July when the pass is typically open.

Whistlin' Jack's Lodge on SR-410 near Naches is the natural midday stop on the Chinook Pass approach: a 96-seat restaurant, a full bar, and the only full-service food and lodging for miles in either direction.

Combine WA-410 with Cayuse Pass (WA-123) and White Pass (US-12) for a full Rainier loop that touches three volcanic peaks — Rainier, St. Helens, and Adams all visible on clear days from the ridge sections of US-12. The Spirit Lake Highway (WA-504) branches off I-5 and runs 52 miles into the blast zone of Mount St. Helens — one of the more unusual roads in the country for sheer landscape character. Check WSDOT conditions before riding; the upper section near the Johnston Ridge Observatory sustained landslide damage in 2024 with restoration expected by fall 2026.

The Eastern Passes

Stevens Pass (US-2) is the workhorse cross-Cascade route, 82 miles from Monroe to Leavenworth with mid-speed sweepers through the Skykomish valley. Traffic on Seattle-area weekends can be heavy — midweek is noticeably better. On the other side, Sherman Pass Scenic Byway (WA-20 East) — a fully separate road from the North Cascades stretch — crosses Washington's highest year-round maintained highway at 5,575 ft through the Colville National Forest with minimal traffic. Worth knowing these two WA-20 segments do not directly connect.

In the southeast corner, Rattlesnake Grade (WA-129) drops into the Snake River canyon for nine switchbacks climbing 840 feet in under four miles — the American Motorcyclist Association lists this corridor among the top 15 motorcycle rides in the country. Very low traffic.

The Olympic Peninsula

The Olympic Peninsula Loop (US-101) is roughly 330 miles and best treated as a multi-day ride. The route passes the Hoh Rain Forest corridor, Ruby Beach on the coast, and Lake Crescent in the north. Amenities thin out on the remote southwestern stretch between Forks and Lake Quinault — plan fuel accordingly.

Rallies

The Anacortes Oyster Run fills Anacortes's waterfront on the fourth Sunday in September — no registration, no required route, just bikes, vendors, and the Seattle Cossacks Motorcycle Drill Team. The 2026 date is September 27. For ADV-oriented riders, the Touratech Rally West runs in late June in Plain, near Leavenworth, with guided rides into the Cascades, demo rides, and clinics.

Plan Your Ride

The Samish Overlook on Blanchard Hill Road makes a good stretch stop on the approach to Anacortes or the North Cascades — the viewpoint looks across Samish Bay to the San Juans and Mount Baker on clear days. The Verlot Public Service Center on the Mountain Loop Highway corridor is the last reliable information stop before the pavement turns to gravel — staff there can give current trail and road conditions. Both west-side passes (WA-20 and WA-410) typically close from late fall through late May; eastern passes including US-12 stay open year-round. Pack rain gear regardless of the forecast west of the Cascades, and carry water east of them.