Dillon to Kanarraville Road Trip: Best Stops & Drive Time

Before you dismiss this route as a monotonous slog, consider this: the 480-mile drive from Dillon, Montana to Kanarraville, Utah crosses the Continental Divide at Monida Pass (elevation 6,870 feet), where the waters split between the Missouri and Snake River systems.

This journey through the high desert and mountain valleys offers an unexpected variety of landscapes and stops. Here's how to make the most of it, with an honest assessment of whether it's worth driving.

I-15 is a well-maintained interstate, but speed limits in Montana are high (80 mph), so manage your pace. Wildlife crossings are common near dawn and dusk, especially in the Centennial Valley — stay alert for deer and antelope.

For families, the Idaho Falls Zoo at Tautphaus Park is a kid-friendly detour off I-15, and the Discovery Center in Idaho Falls offers hands-on science exhibits. Pets are welcome at many roadside rest areas, but note that Craters of the Moon and Yellowstone (if you detour) have leash policies.

Fatigue is a real hazard on long stretches of empty highway. Plan to stop every two hours at one of the many rest areas, or use the full-service towns like Pocatello for a proper stretch break.

Hidden off-route spots include the Lava Hot Springs in Idaho, just 20 miles east of I-15 — a perfect place to soak away the driving stiffness. For overnight stays, consider historic lodges in the national forests or budget motels in the larger towns.

From the sagebrush plains of Montana to the volcanic formations of Idaho, the scenery shifts dramatically. Near Arco, Idaho, you'll encounter the Craters of the Moon National Monument, a surreal landscape of ancient lava flows — a must-see if you have a couple of hours to detour.

Further south, the route skirts the Wasatch Range, offering glimpses of snow-capped peaks even in summer. In Utah, the red rock cliffs near Kanarraville signal your arrival in the Colorado Plateau.

For local culture, stop in small towns like Dubois or Malad City, where you'll find family-owned diners and antique shops. The Idaho Potato Museum in Blackfoot is a quirky tribute to the region's agricultural heritage, complete with a giant potato sculpture.

To plan your stops more effectively, check out how to find the best stops and hidden gems between cities.

Your route follows I-15 South from Dillon for the bulk of the journey, with short stretches on US-91 and I-84 near Pocatello. Expect to spend roughly 7–8 hours behind the wheel if you drive straight through, but plan for at least 10–12 hours with sightseeing and meals.

Gas stations are sparse in central Montana and Idaho, so fill up in Dillon and again in Idaho Falls or Pocatello. Prices tend to be highest in remote areas; budgeting $50–$60 per tank is typical.

For real-time traffic and construction updates, check the Montana and Idaho DOT apps before leaving. Winter driving can be treacherous, especially over Monida Pass, so carry chains from November through April.

• Fuel up in Dillon (last major station for 200 miles).
• Idaho Falls is the best midway fuel stop.
• Road quality is excellent on I-15, with frequent rest areas.