Stanley ID to Dubois WY: A Scenic Road Trip Guide

Along the route from Stanley, ID to Dubois, WY, you'll cross the Continental Divide at 8,391 feet, passing through the unique volcanic landscapes of Craters of the Moon and the Wind River Range. The journey covers 366 miles and typically takes 7 hours of driving time, not including stops. For a deeper dive into uncovering lesser-known spots, see how to find the best stops and hidden gems between cities.

Family and Pet-Friendly Amenities

Craters of the Moon allows pets on leashes, and the visitor center has educational exhibits for kids. The Wind River Canyon is scenic but lacks developed facilities; plan restroom breaks in Thermopolis (off-route) or at the Dubois Visitor Center. Many restaurants in towns along the route are family-friendly, but options are limited.

Hidden Off-Route Gems

Detour 20 miles north of Dubois to see the Union Pass, used by the Lewis and Clark Expedition. Or stop at the historic Irwin's Store in Spencer, ID for a quirky break. The route also passes the Teton Science Schools' Kelly Campus, offering educational programs.

Rest and Fatigue Management

Plan to stop every 2 hours. Notable rest areas include the Craters of the Moon picnic area, Idaho Falls' riverside park, and the Dubois Rest Area. The road can be monotonous across the Snake River Plain, so vary your speed and take breaks to stay alert.

The route primarily follows US-20 and US-26 through Idaho and Wyoming. Gas stations are sparse, especially between Arco, ID and Dubois, WY, so plan to fill up in Stanley, Challis, Arco, Idaho Falls, and Jackson. Fuel prices vary; as of 2024, gas in Idaho averages $3.50/gallon, while in Wyoming it's $3.20/gallon. Budget approximately $50-$70 for the entire trip. Cellular coverage is intermittent, particularly through Craters of the Moon and the Wind River Canyon.

Road Quality and Safety

The highways are well-paved year-round, but winter conditions can be hazardous with snow and ice. The route is generally safe, but watch for wildlife, especially deer and elk. The speed limit is 55-65 mph, with lower limits in construction zones. No tolls are on this route.

Geological Highlights

The route passes through the Snake River Plain, shaped by volcanic activity, and the Wind River Range, home to ancient Precambrian rock. Craters of the Moon National Monument features lava tubes and cinder cones, while the Wind River Canyon exposes 2.9-billion-year-old rocks.

Cultural and Economic Nodes

Challis is a small ranching town with a few diners and a grocery store. Arco is known as the first city lit by nuclear power, with the EBR-I reactor nearby. Idaho Falls offers urban amenities, including a Riverwalk and the Museum of Idaho. In Dubois, the National Bighorn Sheep Center showcases local wildlife.