Moscow ID to Riverton WY: Road Trip Guide

The drive from Moscow, Idaho to Riverton, Wyoming spans roughly 650 miles, crossing the Bitterroot and Wind River mountain ranges. The route, primarily via US-95, I-90, and US-26, offers a landscape of rolling Palouse hills, rugged canyons, and high desert. This guide covers practical logistics, natural attractions, and everything you need to decide if it's worth the journey.

Note: Table below shows key route data.

You start in the Palouse, known for its dramatic rolling hills cultivated with wheat and lentils. As you climb into Idaho and Montana, you'll encounter the Selkirk and Bitterroot ranges, with dense pine forests and rivers. The final leg through Wyoming's Wind River Basin reveals arid, high-desert plains with sagebrush and red-rock outcroppings.

The drive crosses several rivers, including the Clark Fork and the Wind River. Keep an eye out for wildlife like elk, deer, and bighorn sheep.

Local commerce along the route includes small farming communities, roadside produce stands, and craft breweries in towns like Coeur d'Alene and Missoula. For authentic local culture, stop in Darby, MT for its sawmill history and quaint shops.

UNESCO World Heritage Sites are not directly on the route, but Yellowstone National Park is a manageable detour (about 2 hours from Riverton). If you have extra time, it's worth the trip.

Winter driving is hazardous, especially over passes like Lolo Pass (elevation 5,233 ft) and Teton Pass. Carry chains and emergency supplies. In summer, afternoon thunderstorms are common in mountainous areas.

Road quality is good; most interstates have wide shoulders and rest areas. However, rural stretches may have potholes after winter.

For families, the route is suitable with frequent gas stations and fast-food options. For kids, consider stops at Silverwood Theme Park near Coeur d'Alene, or the Museum of Mountain West Art in Hamilton, MT.

For pets, numerous hotels are pet-friendly, and rest areas often have designated pet areas. Always keep dogs leashed.

To manage fatigue, take a break every 2 hours. Recommended rest stops: Sandpoint, ID; St. Regis, MT; and Dubois, WY (last chance for food before Riverton).

Hidden gems: the ghost town of Garnet, MT, accessible via a rough road, and the hot springs near Bozeman (if you detour slightly).

For a deeper dive into discovering off-the-beaten-path spots, see how to find the best stops and hidden gems between cities.

Driving time without stops is roughly 11-12 hours, but plan for at least 14 hours with breaks. Traffic is generally light outside of Spokane and Missoula. Major highways are well-maintained, but sections through mountain passes can be narrow and winding.

Key routes: US-95 North to I-90 East, then south on US-93 through Missoula, and finally US-287/US-26 into Riverton. The most direct way is as described, but check road conditions in winter.

Fuel prices vary considerably; expect lower costs in Idaho and Montana, higher in Wyoming. Total fuel for an average car could be around $80-100. There are no tolls on this route.

Major towns for rest or overnight: Spokane, WA; Missoula, MT; Butte, MT; and Idaho Falls, ID (slightly off-route but worth considering). Riverton is a small city; booking accommodation is straightforward.