Hanksville to Dillon Road Trip: Scenic Drive Guide

Leaving Hanksville, Utah (elevation 4,300 ft) and heading north to Dillon, Montana (elevation 5,100 ft), you traverse a 580-mile route that climbs through the Colorado Plateau, the Uinta Basin, and the Rocky Mountain front. One of the most striking oddities: just outside Hanksville, the road passes the Moon Overlook, a lunar-like terrain used to test Mars rovers, a rarity you’ll only find here. This is a drive of stark transitions—from red-rock desert to sagebrush steppe to pine-clad mountains—offering a slice of the American West few travelers see.

The most direct route follows US-191 North and I-80 West, then I-15 North, but a more scenic alternative takes US-191 all the way to I-90 West via US-287. How long to drive Hanksville, UT to Dillon, MT? Expect 10 hours of pure driving, but add 2-3 hours for stops. Fuel prices drop significantly once you cross into Wyoming, averaging $3.50 per gallon versus nearly $4 in Utah, so plan to fill up in Rock Springs.

• Significant rest stops: Green River, UT (mile 30), Vernal, UT (mile 200), and Pinedale, WY (mile 380).
• Road conditions are generally good, but US-191 can be narrow and winding north of Vernal.
• Gas stations become sparse between Hanksville and Vernal (one in Green River), so never let your tank go below half.

Road quality is excellent on interstates but variable on US-191; loose gravel and deer crossings are common. Keep an eye out for wildlife at dawn and dusk. For families, the Dinosaur National Monument near Vernal offers kid-friendly fossil viewing, and the Beaverhead County Museum in Dillon has interactive exhibits. Nearly all rest areas are pet-friendly, but always keep dogs on leash.

Fatigue is a real risk on long stretches; plan to stop every 2 hours. Designated rest areas exist at Green River, Rock Springs, and Butte. Hidden off-route gems include the Coral Pink Sand Dunes State Park near Kanab (a detour) and the Hobbit Caves near Flaming Gorge, accessible via a short hike. For a unique local experience, try the Energy Down Under Restaurant in Vernal, which serves Navajo tacos.

As you leave Hanksville, you immediately enter the San Rafael Swell, a giant geologic dome with colorful rock layers and the famous Goblin Valley State Park (a must-see for its hoodoos). This area is part of the Colorado Plateau, a region so unique it’s been proposed as a UNESCO World Heritage Site for its bio-cultural diversity. Along the way, you’ll pass through the Uinta Basin, home to the Uintah and Ouray Indian Reservation, where you can stop at the Utah Field House of Natural History in Vernal to see dinosaur fossils.

In Wyoming, the landscape turns to wide-open sagebrush plains with glimpses of the Wind River Range. The town of Pinedale (population 2,000) is a hub for outdoor enthusiasts and offers local craft breweries and diners. Continuing north, you cross the Continental Divide at South Pass, a historic Oregon Trail landmark. The route eventually meets the Beaverhead River in Montana, named for the large beaver population, and Dillon sits at the edge of a wide valley with the Pioneer Mountains as a backdrop.

For planning your stops and hidden gems, consult how to find the best stops and hidden gems between cities.