Hanksville to Riverton Road Trip: Scenic Utah-Wyoming Drive

At Hanksville, Utah, the paved road follows the Fremont River's ancient path, but the real adventure begins as you leave town on UT-24, where the Henry Mountains rise abruptly from the desert floor—a rare igneous intrusion that is among the last mapped places in the lower 48.

The route to Riverton, Wyoming, spans 350 miles of varied terrain, climbing from 4,000 feet in Utah’s canyonlands to 5,000 feet in Wyoming’s Wind River Basin.

Is it worth driving Hanksville, UT to Riverton, WY? Yes—for the geological diversity. The route passes near the San Rafael Swell, a 40-mile-long anticline with tilted rock layers, and crosses the Green River at the historic town of Green River, Utah.

Just off the route, Dinosaur National Monument (near Vernal, UT, about 120 miles detour) preserves a Jurassic-era bone quarry, a UNESCO World Heritage Site.

Things to do between Hanksville, UT and Riverton, WY include visiting the Flaming Gorge National Recreation Area on the Utah-Wyoming border, where the Green River slices through red cliffs. In Rock Springs, the Western Wyoming Community College Natural History Museum displays local fossils.

Local commerce along the way centers on gas stations, cafes, and motels that cater to travelers. In Riverton, the weekly farmers market (summers) features local produce and crafts.

The route is generally safe, but winter can bring snow and ice, especially on I-80 between Green River and Rock Springs. Summer temperatures exceed 90°F (32°C) in Utah, but higher elevations in Wyoming are cooler.

Road quality is good on interstates; two-lane sections in Wyoming are well-maintained but watch for wildlife, especially deer and antelope at dawn/dusk.

For families, child-friendly stops include the Green River Visitor Center (with interactive exhibits) and the Flaming Gorge Dam Visitor Center (free tours). Pets are allowed at most rest areas and campgrounds; keep them leashed and never leave in a hot car.

Fatigue management: plan rest stops every 2 hours. Key rest areas include the Fremont Junction Rest Area (mile 89 on I-70), the Little America Rest Area (near mile 68 on I-80), and the Riverton Rest Area (US-26/US-191). Hidden off-route spots: the Swasey Cabin in the San Rafael Swell, a historic homestead, and the Bighorn Sheep Viewing Area on WY-789 north of Rock Springs.

To discover more scenic detours, check how to find the best stops and hidden gems between cities.

How long to drive Hanksville, UT to Riverton, WY is about 6 hours without stops. The route combines two interstates, I-70 and I-80, with two-lane highways through Wyoming.

Fuel stations are sparse between Hanksville and Green River (about 54 miles), then frequent along I-80. Gas prices in Hanksville typically run 10-15 cents higher than in Green River.

• Fuel stops: Hanksville (Sinclair), Green River (multiple), Rock Springs (many), Riverton
• Food options: Hanksville has two cafes; Green River has fast food; Rock Springs offers full-service restaurants; Riverton has local diners
• Lodging: Best to stay in Green River or Rock Springs if breaking the trip