Hanksville to Afton: Road Trip Guide Through Utah & Wyoming

Before you is a route that crosses the Colorado Plateau, the Uinta Basin, and the Wyoming Overthrust Belt, connecting the high desert of Utah to the verdant Star Valley. One striking fact: the start near Hanksville sits at about 4,300 feet, while Afton rests at 6,240 feet, a climb of nearly 2,000 feet over roughly 330 miles. This elevation change is a quiet promise of cooler air and shifting ecosystems.

Here's a snapshot of the journey's key logistics:

This route skirts the northern edge of in Canyonlands, as you pass near the San Raphael Swell east of Hanksville. The rugged buttes and hoodoos of Goblin Valley State Park, only 40 miles off-route, are a geological playground. As you climb into the Uinta Basin, you'll cross the historic Overland Trail, following the same highways that once served the transcontinental railroad and early settlers.

UNESCO World Heritage Sites: While none lie directly on the route, Dinosaur National Monument, 80 miles east of Vernal, is a candidate and renowned for its fossil quarry. The closest UNESCO site is Carlsbad Caverns in New Mexico, but a visit to Dinosaur National Monument is a worthy detour for dinosaur bones.

Climatic conditions: In summer, daytime highs range from 90°F (32°C) at the start to 75°F (24°C) in Afton, with cooling at higher elevations. Winters are harsh: Hanksville can see 20°F (-7°C) mornings, while Afton averages 119 inches of snow annually. The best road trip weather is late spring (May-June) or early fall (September-October).

Local commerce: Small-town economies rely on agriculture and tourism. In Price, the Western Mining and Railroad Museum tells the region's coal history. In Kemmerer, the JC Penney Mother Store, the first ever JC Penney, is a memento of retail history. Afton boasts the world's largest elk antler arch, spanning the main street, and is a hub for fly fishing on the Salt River.

Culinary infrastructure: Options are sparse between towns. In Hanksville, Duke's Slickrock Grill serves hearty burgers and steaks. Price has a Mexican restaurant selection, notably Los Panchos. Duchesne's Frontier Diner seems steps back in time. In Montpelier, local favorite, St. Anthony's Bakery, offers fresh pastries and bread. Afton's Driftwood Cafe serves filling American fare. Don't expect gourmet—this is comfort food region.

The drive begins on UT-24 east from Hanksville, passing the turnoff to Goblin Valley State Park, then joins I-70 east toward Green River. From there, US-191 north takes you through Helper and Price. Approaching Duchesne, US-40 heads east to Fort Bridger, where you'll cross into Wyoming. Continue on US-189 north to Kemmerer, then US-30 north to Fossil Butte, and finally US-89 north through Montpelier to Afton. This winding path adds miles but rewards with varied scenery.

• Fuel stops: Green River, Price, Duchesne, Fort Bridger, Kemmerer, Cokeville, and Montpelier. These towns offer fuel but distances between can be 50+ miles, so plan ahead.
• Road quality: Well-maintained highways, but expect construction delays in summer on I-70 and US-40. Winter driving requires chains or AWD over the Continental Divide at Hogsback (US-40).
• Cell coverage: intermittent in rural areas, especially between Green River and Price, and near the Wyoming border. Download offline maps.

Driving physics: The Hogsback (US-40 east of Duchesne) and the Southern Overthrust Belt near Cokeville have steep grades and sharp curves; take them slow, especially with trailers

• Goblin Valley State Park: family-friendly hiking among thousands of hoodoos, small visitor center and trails.
• Fossil Butte National Monument: educational exhibits of 50-million-year-old fish fossils.
• Natural History Museum of Utah: a architectural gem in Salt Lake City, a two-hour detour west from US-40 at Heber City.
• Easy access to infant changing stations: available in modern rest stops in Price, Rock Springs, and Afton.

Pet-friendly framework: Most outdoor stops allow dogs (Goblin Valley, Fossil Butte, and pullouts). Motels along the route vary; for example, the Super 8 in Price accepted pets, but always call ahead. Note that Fossil Butte's visitor center does not allow pets, but the grounds are okay.

Infrastructure safety: The Utah and Wyoming DOTs maintain highway alert systems for weather. I-70 is a designated trucking corridor, so expect high-speed traffic. Around Montpelier, watch for wildlife, especially elk and deer at dusk on US-89.

Fatigue management: Rest areas are spaced strategically; e.g., Salt Wash rest area on I-70, an official Utah rest area with picnic tables; west of Duchesne, pullout at Duchesne overlook; and at the Little America truck stop in Fort Bridger (huge fuel/food complex). For an off-route hidden spot, drive to Diamond Fork Hot Springs near Spanish Fork, 30 minutes from US-40, for a soak among forest and river.

Hidden off-route spots: Temple Draw near Hanksville offers sandstone arches without the crowds. Also, the Wild Horse Window is a natural bridge in San Raphael Swell, requiring a high-clearance road. North of Kemmerer, Hams Fork River has a hidden fishing hole used by locals near the Piedmont area.

Things to do between Hanksville, UT and Afton, WY consistently involve these natural and cultural diversions. Instead of blasting down the highway, how to find the best stops and hidden gems between cities is a useful lens.