Ellensburg to Alpine: Scenic Drive Guide

Nearly 600 miles of rugged beauty separate Ellensburg, Washington, and Alpine, Wyoming, but the journey is more than just a means to an end. This route crosses the Cascades, the Columbia River, and the Rockies, offering a diverse slice of the American West. The drive takes roughly 10 hours without stops, but you'll want to budget extra time for the countless attractions along the way.

As you leave Ellensburg, the dramatic Columbia River Gorge gives way to rolling wheat fields and the arid channeled scablands, remnants of the Missoula Floods. Approaching the Idaho Panhandle, dense pine forests and pristine lakes like Lake Coeur d'Alene dominate. Wyoming's Star Valley offers expansive mountain vistas. Local commerce along the route thrives in small towns like Ritzville, WA, and Ashton, ID, where farmers' markets and roadside stands sell fresh produce and handmade goods.

The route primarily follows I-90 East to Spokane, then I-90/US-395 to Coeur d'Alene, and finally US-26/Idaho 31 to Alpine. Road quality is generally excellent, with well-maintained highways and clear signage. Fuel economy is a consideration; prices vary significantly between states, so filling up in Washington often saves money compared to Idaho or Wyoming.

• Washington gas tax: 49.4 cents/gallon (as of 2024), highest in the region.
• Idaho gas tax: 33 cents/gallon, one of the lowest.
• Wyoming has no state income tax, but gas taxes are moderate at 24 cents/gallon.
• Most rest areas offer free parking and picnic tables, but limited services on remote stretches.

Winter driving can be treacherous, especially over Lookout Pass (elevation 4,700 ft) on I-90, where snow is common from November to March. Summer brings potential thunderstorms with hail. For families, the route offers countless kid-friendly activities, such as the Silverwood Theme Park in Athol, ID, and the Oregon Trail interpretive sites. Pets are welcome at most rest stops and campgrounds; always carry water and a leash. To combat fatigue, plan stops every 2 hours or 100 miles; notable rest areas include Vantage, WA, and Craters of the Moon, ID (a short detour).

• Carry chains or all-weather tires in winter, even if not required.
• Always check road conditions via 511 or highway alerts.
• Consider an overnight stay in Missoula, MT, to split the drive comfortably.
• Hidden gem: Bitterroot Valley, MT, offers hot springs and quiet trails.

For more tips, check out how to find the best stops and hidden gems between cities.