Boise to Kellogg Road Trip: Idaho's Highway 55 to I-90

The route from Boise to Kellogg covers 360 miles via US-55 and I-90, passing through Payette River canyon and Coeur d'Alene. A key fact: the drive crosses the 45th parallel near New Meadows, marking the halfway point between the equator and North Pole. The road climbs from 2,700 feet in Boise to 6,200 at Lolo Pass before descending to Kellogg at 2,300 feet.

The driving time is typically 5.5 to 6.5 hours without stops. But to answer how long to drive Boise, ID to Kellogg, ID with breaks, plan for 8–9 hours. Is it worth driving Boise, ID to Kellogg, ID? Absolutely—the scenery, small towns, and outdoor access make it a classic Idaho journey.

For extra tips on how to find the best stops and hidden gems between cities, see this guide.

Road quality on US-55 is good but winding; watch for deer, especially at dawn/dusk. I-90 is a divided interstate with wide shoulders. Winter tires and chains are recommended if snow is forecast. Check Road Idaho for conditions.

For families: a break at Ponderosa State Park (McCall) offers easy trails and a beach. Farragut State Park near Coeur d'Alene has a playground and historical museum. Kellogg's Silver Mountain gondola is accessible for all ages. Pets are welcome on leash at most rest stops and in national forests.

For fatigue management: rest areas every 60 miles on I-90. On US-55, the best stop is the Horseshoe Bend Rest Area (mile 35) with picnic tables. Also, the New Meadows Rest Area (mile 100) has clean bathrooms. Plan to stretch every two hours.

• Boise to McCall: 1.5 hours – stop in Horseshoe Bend or Cascade.
• McCall to Coeur d'Alene: 3 hours – break in Riggins or Grangeville.
• Coeur d'Alene to Kellogg: 1 hour – no stop needed unless for fuel.

US-55 north from Boise is a well-paved two-lane highway with occasional passing lanes. It follows the Payette River, offering many scenic pullouts. Near New Meadows, you join US-95 then I-90 east at Coeur d'Alene. The entire route is paved, but winter conditions can bring snow from November to April.

Fuel stations are sparse between McCall and Coeur d'Alene—about 100 miles. Fill up in Boise, McCall, or Grangeville. Along I-90, fuel is plentiful. Rest stops with bathrooms appear at mile markers 70 (US-55) and 22 (I-90 east of Coeur d'Alene).

• Boise to McCall: fuel in Horseshoe Bend, Cascade, or McCall.
• McCall to Coeur d'Alene: fuel in New Meadows, Riggins, Grangeville, and Lewiston.
• I-90 from Coeur d'Alene to Kellogg: multiple exits with gas.

The Payette River canyon offers dramatic granite cliffs and whitewater. Stop at the Big Eddy viewpoint near Smiths Ferry for rafting views. Farther north, the Salmon River near Riggins is known as the River of No Return. The mountains are forested with ponderosa pine and Douglas fir.

Local commerce thrives in small towns: McCall has artisan bakeries and the historic Shore Lodge. Grangeville boasts the Prairie Cafe with huckleberry pie. In Kellogg, the Silver Mountain gondola offers summer hiking and winter skiing. The region also has the Coeur d'Alene Resort and the Museum of North Idaho.

• McCall: Ponderosa State Park, Payette Lake, and downtown shops.
• Riggins: rafting outfitters and salmon fishing.
• Kellogg: Silver Mountain, Crystal Gold Mine tour, and the historic city center.