Laramie to Hanksville Road Trip: Scenic Utah & Wyoming

This route from Laramie, Wyoming to Hanksville, Utah traverses 450 miles of dramatic geological transition. You begin at 7,200 feet on the high laramie plains and end at 4,300 feet in the heart of Utah's canyon country. The drive follows I-80 west to Rock Springs, then US-191 south through Flaming Gorge National Recreation Area, past Dinosaur National Monument, and into the San Rafael Swell near Hanksville.

• Total distance: 450 miles (724 km).
• Estimated driving time: 7.5 to 8.5 hours without stops.
• Key highways: I-80, US-191, UT-95, UT-24.
• Milestone: Crossing the Wyoming-Utah border at mile marker 4 on US-191 (approx. 2.5 hours from Laramie).

Historically, this route follows part of the Lincoln Highway (US-30) and later the Old Spanish Trail. The stretch between Green River, UT and Hanksville was once a critical uranium mining corridor during the Cold War. Today, it's a gateway to some of the most remote and photogenic landscapes in the lower 48. Learn more about how to find the best stops and hidden gems between cities to make the most of this journey.

Fuel and Route Economics

Fuel stations are sparse beyond Rock Springs and Green River. Fill up in Laramie (gas around $3.50/gal) and again in Rock Springs. The long stretch from Vernal, UT to Hanksville (110 miles) lacks services, so plan accordingly. Diesel is available at most major stations.

• Average fuel cost: $50-$70 for a typical sedan (12-15 gallons).
• Ethanol-free gas available at select stations in Laramie (Sinclair, 2310 Grand Ave).
• Electric vehicle charging: Level 2 chargers in Rock Springs (Pilot Travel Center) and Green River (Superior Grocers). DC fast chargers are absent beyond Vernal until Hanksville (no public chargers).
• Cash discounts: Many rural stations offer 5-10 cent discount per gallon for cash.

Road Quality and Infrastructure Safety

I-80 is well-maintained, but watch for crosswinds between Laramie and Rawlins. US-191 from Rock Springs to Flaming Gorge is narrow and curvy in places, with steep drop-offs near the dam. South of Flaming Gorge, the road improves but remains two-lane.
In Utah, UT-95 and UT-24 are generally good, but sections near Hanksville have unpaved shoulders and occasional sand drifts.

• Construction zones: Expect delays near Rock Springs (I-80 reconstruction, summer 2025).
• Cell coverage: Spotty between Rock Springs and Flaming Gorge; no signal for 30-mile stretches in Utah near Goblin Valley.
• Winter conditions: I-80 may close due to snow from October to April. US-191 remains open but may have ice. Always check WYDOT and UDOT road conditions.
• Emergency services: Wyoming Highway Patrol (307-777-4300) and Utah Highway Patrol (801-887-3800).

Family and Child Suitability

The route offers easy hikes and interactive museums. Dinosaur National Monument's Junior Ranger program is excellent. Goblin Valley is a playground for kids (climbing on rocks). Flaming Gorge's visitor center has a touch table with fossils.
For very young children, limit driving to 4-5 hours per day. Break up the trip with a stop in Vernal overnight.

• Best family stops: Flaming Gorge Dam Visitor Center, Dinosaur Quarry Exhibit Hall, Goblin Valley State Park.
• Activities: Fossil digging at Dinosaur National Monument (permit required, $7 per child).
• Safety: Carry extra water and snacks; no fast food beyond Rock Springs.

Pet-Friendly Framework

Dogs allowed on leash in most national forest areas (Ashley National Forest) and Goblin Valley State Park. Dinosaur National Monument permits pets only on paved roads and developed areas, not on trails. Flaming Gorge allows pets in campgrounds and on the water (boat).
Be aware of extreme heat (90°F+ in summer) and sharp rocks. Carry paw soothers and extra water.

• Pet-friendly motels: Best Western Plus in Rock Springs, Holiday Inn Express in Vernal (pet fee $25).
• Dog parks: Rock Springs has a small off-leash area at Bunning Park.
• Water access: Green River below Flaming Gorge Dam has calm water for dogs to swim.

Fatigue Management & Rest Zones

Long stretches of empty road can cause drowsiness. Plan stops every 2 hours. Rest areas: on I-80 at the Little America/Wamsutter exit (mile 135), at the Flaming Gorge Dam overlook (parking with restrooms), and at the town of Green River, Utah (free public restrooms at city park).
Use the 20-20-20 rule: every 20 miles, look at something 20 feet away for 20 seconds.

• Rest areas (open 24h): I-80 westbound mile marker 135 (Wamsutter), US-191 at Flaming Gorge Dam (day use only).
• Scenic pullouts: Red Canyon Overlook (mile 30 on US-191 south of Rock Springs), Swell overlook (UT-24 near Hanksville).
• Energy snacks: Stock up jerky and nuts at Maverik convenience stores in Rock Springs and Green River (UT).

Hidden Off-Route Spots

Detour to the “Booze Brothers” ghost town (old uranium mining camp) on UT-24 west of Hanksville. Or hike to San Rafael Bridge, a natural arch reachable via a 2-mile dirt road (4WD recommended). Near Flaming Gorge, the “Cedar Springs” petroglyph site is a short walk from the road (unmarked, ask at ranger station).

Another gem: the “Moon Overlook” near Hanksville offers views of the Henry Mountains and the blueish clay hills. Access via a rough gravel road (2WD ok in dry weather).

Natural Landscapes & Attractions

The route crosses the Red Desert (high desert plains with shifting sand dunes), the Uinta Mountains (Utah's highest range), and the Colorado Plateau. Flaming Gorge Reservoir's bright red cliffs contrast with the deep blue water. Dinosaur National Monument holds fossilized bones embedded in the sandstone. The San Rafael Swell is a geological dome with slot canyons and petroglyphs.

• Flaming Gorge: Scenic drive along the Red Canyon Rim (30 miles, 45 min).
• Dinosaur National Monument: The Quarry Exhibit Hall has the largest concentration of Jurassic dinosaur bones (accessible via shuttle in summer).
• Goblin Valley State Park: Hoodoos and goblin-shaped rock formations. Entry $20.
• San Rafael Swell: Free dispersed camping and hiking at Little Wild Horse Canyon (slot canyon, 8 miles round trip).

UNESCO World Heritage Sites

The route passes near two UNESCO sites: Dinosaur Provincial Park (Canada, not applicable) and the remote Bears Ears National Monument (designated as a World Heritage cultural landscape by indigenous groups, though not officially inscribed). However, the most relevant is the Dinosaur National Monument, which is part of the Jurassic World Heritage serial nomination (not yet inscribed). The monument's fossil beds are of global significance.

Additionally, the Fremont Indian petroglyphs near Hanksville (and along the Escalante River) are part of the proposed “Ancient Rock Art of the Colorado Plateau” World Heritage tentative list.

Local Commerce & Culture

Rock Springs has a historic downtown with Czech and Polish heritage (Brewery and Czech bakery). Vernal has a Western vibe with a rodeo every June. Hanksville is a small town (population <200) with a general store and the Whiskey Mountain Saloon, known for its live music on weekends.

• Shopping: Uranium mining memorabilia in Vernal at the Utah Field House of Natural History.
• Local food: Try fry bread at the Ute Indian Museum (near Vernal) or pasties in Rock Springs (The Pasty Lady).
• Festivals: Flaming Gorge Days (July, in Manila), Dinosaur National Monument's Fossil Festival (June).