Sequim to Hamilton: A Road Trip Guide Through the Pacific Northwest

Sequim, Washington, sits in the rain shadow of the Olympic Mountains, receiving just 15-17 inches of rain annually, while Hamilton, Montana, lies in the Bitterroot Valley with over 300 days of sunshine a year. This 700-mile journey traverses three states, crossing the Cascade Range and the Rocky Mountains.

Driving from Sequim to Hamilton typically takes 11-12 hours of pure driving, but plan for a full day with rest stops. Notable landmarks include the Snoqualmie Pass (elevation 3,022 ft) on I-90 and the Lookout Pass on I-90 at the Idaho-Montana border.

I-90 is a divided highway with rest areas every 30-50 miles. Most rest stops have picnic tables and pet areas. For families, theKidsQuest Children's Museum in Bellevue and the Missoula Children's Museum are excellent breaks.

Pet-friendly: Many hotels along the route accept pets, and rest stops have designated pet exercise areas.

Fatigue management: Plan to stop every 2-3 hours. Recommended stops: Cle Elum (gas, food), Spokane (full services), and St. Regis (rest area, scenic view). Local culture: The historic town of Wallace, Idaho (population ~200), is a hidden gem with mining history and an old-time saloon.

Begin on US-101 east to WA-20, then I-5 south to I-90 east; follow I-90 through Washington and Idaho to Montana, then US-93 south to Hamilton. The route includes toll-free highways and well-maintained interstates.

• Fuel: Gas prices drop significantly after leaving the Puget Sound area; plan fuel stops in Cle Elum, Ritzville, and Missoula.
• Road conditions: Winter travel may require chains; check mountain pass reports.
• For maximizing stops, see how to find the best stops and hidden gems between cities. For specific recommendations, use our guide.

The route features the Cascade Range's volcanic peaks, the Columbia River Plateau's basalt cliffs, and the Bitterroot Mountains. Notable natural attractions include Snoqualmie Falls (100 ft) and the Clark Fork River.

UNESCO World Heritage Sites near the route include Yellowstone National Park (a 6-hour detour from Hamilton) and the Glacier National Park (4 hours north). Both are worth extended visits.

Culinary stops: Try the famous Teriyaki in Seattle, huckleberry treats in Montana, and farm stands in the Skagit Valley.