Gardiner to Kanarraville Road Trip Guide

The drive from Gardiner, Montana, to Kanarraville, Utah, spans roughly 700 miles along Interstate 15, crossing the Continental Divide and the Great Basin. Gardiner sits at the only year-round entrance to Yellowstone National Park, while Kanarraville is a small town near Zion, known for its slot canyon.

The route takes you through Idaho Falls, Pocatello, and Salt Lake City, with a mix of mountain passes and high desert plains. Expect a minimum driving time of 11 hours without stops, but plan for 13-14 hours with breaks.

This guide covers the best stops, practical logistics, and hidden gems along the way. For a broader method on finding stops, see this article on finding stops and hidden gems.

Most travelers wonder how long to drive from Gardiner to Kanarraville: allow 11 hours of pure driving, but add time for meals and sightseeing. The question of whether it's worth driving this route depends on your interest in diverse landscapes and national parks—it's a yes if you enjoy scenic drives and roadside attractions.

The route transitions from the Gallatin Range to the Snake River Plain, offering diverse geology: volcanic rock near Craters of the Moon, and red rock formations south of Salt Lake City. Yellowstone, a UNESCO World Heritage Site, is your starting point; Craters of the Moon and the Old Salt City area are other notable natural attractions.

Local commerce thrives in small towns like Dubois and Beaver, with family-run diners and souvenir shops. Farm stands along US-89 sell fresh produce in season.

Climatic conditions vary: Montana can be 60°F in summer evenings, while Utah's desert heat can exceed 100°F. Spring and fall offer moderate temperatures and fewer crowds.

Hidden off-route gems include the lava tube caves at Craters of the Moon (off I-15 at Arco) and the Grafton Ghost Town near Kanarraville, accessible via a short detour.

Safety is paramount: always carry water and an emergency kit, especially in remote sections. Speed limits on I-15 are 75 mph in Idaho and 80 mph in Utah, but reduce in construction zones.

• Rest zones: Pocatello Rest Area has a visitor center; Beaver Canyon offers scenic overlooks.
• Family stops: The Discovery Museum in Idaho Falls and the Living Planet Aquarium in Sandy, UT.
• Pet-friendly: Many hotels along the route allow pets; check with chains like Motel 6.

To combat fatigue, plan a stop every 2-3 hours; the Harriman State Park near Island Park has shaded picnic areas. Local cuisine: try a huckleberry shake in Montana and a fry sauce burger in Utah.

For culture, visit the LDS Temple in Idaho Falls and the Utah State Fairgrounds in Salt Lake City. For family suitability, most attractions have kid-friendly activities, but verify seasonal hours.

Interstate 15 is the backbone of this route, with an alternative via US-20 and US-89 offering more scenic but slower options. Road quality is generally excellent, with well-maintained asphalt and clear signage.

• Fuel costs vary: average $3.50 per gallon, with cheaper options in Idaho Falls and Salt Lake City; plan for a full tank before entering rural stretches.
• Major rest areas exist at roughly 50-mile intervals, including Beaver Canyon and Craters of the Moon.
• Toll-free route; no toll roads along I-15 from Montana to Utah.

Construction zones are common in summer, especially near Pocatello and Provo, so check live traffic updates. Cellular coverage is sparse through parts of Idaho; download offline maps.

For family travel, rest stops like the Idaho Falls Greenbelt offer playgrounds, and many have clean facilities. For pets, most rest areas allow leashed dogs, and roadside motels are pet-friendly; note that Yellowstone National Park requires leashes.