Torrey to Thermopolis: Utah’s High Plateaus to Wyoming’s Hot Springs

Just outside Torrey, Utah, mile marker 137 on US-24 marks the precise spot where Capitol Reef National Park’s Waterpocket Fold begins its hundred-mile wrinkle in the Earth’s crust. That same road, if you follow it north through the ghost town of Fremont and eventually merge onto US-191, will deliver you 502 miles later to the steaming vents of Thermopolis, Wyoming—home to the world’s largest mineral hot spring. This is not a drive for the impatient: the stretch from Vernal, UT to Rock Springs, WY is nearly 200 miles without a single gas station. For context, that is longer than the entire state of Delaware. The question is worth driving Torrey to Thermopolis often gets a cautious nod—only if you are prepared for the raw, empty majesty of the Colorado Plateau giving way to the Wyoming Basin.

This guide covers everything between Torrey and Thermopolis: how to find the best stops and hidden gems between cities. From the petrified forests of the Uinta Basin to the dinosaur graveyards of Thermopolis, we break down the best stops Torrey, UT to Thermopolis, WY. How long to drive Torrey to Thermopolis? Plan on 8–9 hours pure driving time, but budget at least two full days to absorb the landscapes.

US-191 is the backbone of this trip, a two-lane highway that snakes through the heart of the Uinta Basin. Paved and well-maintained, it sees little traffic outside of oil trucks near Vernal. However, the 180-mile stretch between Vernal and Rock Springs is a fuel desert. Tank up in Torrey (only one gas station at the junction of US-24 and UT-12) and again in Vernal. The next reliable fuel is in Rock Springs. Carrying a spare 5-gallon can is a common local practice.

Cell service is non-existent for long stretches, especially from north of Vernal to just south of Rock Springs. Download offline maps for the entire route. Restrooms are scarce: public facilities exist at the Capitol Reef Visitor Center (mile 0), the Flaming Gorge Dam overlook (mile 240), and Rock Springs (mile 342). All other stops are gas stations or pull-offs with no services.

• Recommended fuel stops: Torrey (Valero), Vernal (multiple stations), Rock Springs (Loves Travel Stop).
• Emergency services: Sanpete County Sheriff (Torrey area), Uintah County Sheriff (Vernal area), Sweetwater County Sheriff (Rock Springs area).
• Tow truck coverage: Limited; AAA has affiliates in Vernal and Rock Springs but response times can exceed 2 hours.

Road quality is generally good, but winter conditions from October to April can be treacherous. Snow accumulations at the summit of US-191 near the Wyoming border often exceed 12 inches. The route is not well-lit; nocturnal wildlife such as mule deer and pronghorn are common hazards. Speed limits drop to 55 mph near highway construction zones, which are frequent between Rock Springs and Thermopolis. Always carry a winter survival kit from November to March.

For families, the best stops are the Dinosaur National Monument near Jensen (kids can touch real dinosaur bones) and the Hot Springs State Park in Thermopolis (free public bathhouse with ADA-accessible pools). The drive itself can be tough on children—break the boredom with car games and frequent stops at scenic overlooks. Pet-friendly accommodations are limited: most motels in Vernal and Rock Springs allow dogs for a fee, but the Flaming Gorge Resort is the most welcoming (no extra charge and a dog-walking area).

• Fatigue management: Rest stops (no services) exist at mile 210 (Diamond Mountain) and mile 280 (Bitter Creek). The only 24-hour diner is the Tamarack in Rock Springs.
• Hidden off-route spot: The White Mountains east of Rock Springs are a surreal volcanic landscape accessible via a 10-mile dirt road (4WD recommended).

The dominant features of this route are the Book Cliffs—a massive escarpment that runs east-west for over 200 miles. You’ll cross them where US-191 climbs from the Green River Valley into the Wyoming plains. The color banding in the cliffs reveals 100 million years of Cretaceous sediment, and on clear days, you can see the Uinta Mountains to the south. Just north of Vernal, the landscape turns surreal: the Red Fleet State Park offers a 10-mile loop with petrified dinosaur footprints embedded in the Navajo sandstone.

Local commerce along the route is sparse but characterful. In Vernal, the Dinosaur Museum (which houses a full-scale Allosaurus skeleton) is a must for families. The Flaming Gorge Dam, completed in 1964, offers tours of its hydroelectric plant. In Rock Springs, the downtown historic district has a handful of antique shops and a coal-mining museum. The biggest cultural marker is the Wind River Indian Reservation just west of Thermopolis, where the Shoshone and Arapaho tribes host a small museum near the hot springs.

• Under-the-radar landscape: The wild horses of the Red Desert (near Point of Rocks, WY).
• Best local crafts: Ute beadwork sold at the Fort Duchesne Trading Post (mile 145).
• UNESCO connection: The Flaming Gorge is part of the larger Colorado Plateau UNESCO Global Geopark network.