Boise to Hanksville Road Trip: Deserts, Gorges, and Dinosaur Tracks

State Highway 20 between Idaho Falls and the Utah border was originally a gravel path used by stagecoaches in the 1880s. Today, the 640-mile drive from Boise to Hanksville takes you across the Snake River Plain, through the Wasatch Range, and into the slickrock canyons of the Colorado Plateau. The route—primarily I-84 E, I-15 S, US-6 E, US-191 S, and UT-24 W—requires about 9.5 hours of driving without stops, but the geologic wonders between demand at least two full days. Is it worth driving Boise, ID to Hanksville, UT? Yes, if you crave Martian-like landscapes, fossilized dinosaur tracks, and dark-sky preserves. This guide breaks down everything you need: best stops Boise, ID to Hanksville, UT, how long to drive Boise, ID to Hanksville, UT, and things to do between Boise, ID and Hanksville, UT.

The region sees fewer tourists than Utah's 'Mighty 5' parks, offering solitude among hidden petroglyph panels and slot canyons. Use how to find the best stops and hidden gems between cities to craft your own unique journey. Below, we cover distances, elevation changes, and specific road quirks—like the sudden crosswinds on US-6 near Price Canyon—so you can plan with confidence.

Fuel and Route Economics

• Fuel stops are abundant along I-84 and I-15, but become sparse south of Price, UT. Fill up at Price (exit 240 on US-6) before heading toward Hanksville—the next reliable station is in Hanksville itself, 120 miles away.
• Gas prices average $3.50/gal in Idaho and $3.70/gal in Utah (2025 estimates). Expect higher prices at remote stations like Green River, UT ($4.00+).
• Electric vehicle owners: use I-84 Superchargers at Burley (250 kW) and I-15 Superchargers at Brigham City (250 kW). Level 2 chargers are scarce east of Price.

Road Quality and Conditions

• I-84/I-15 are well-paved, multi-lane highways in good condition. US-6 is a two-lane mountain road with sharp curves and potential snow/ice from November to April.
• US-191 south of Price is a winding two-lane road with exposed cliffs—watch for falling rocks after rain. UT-24 is mostly straight and well-maintained.
• Traffic: light to moderate on weekdays; heavy near Salt Lake City during commutes (7-9 AM, 4-6 PM). Avoid US-6 through Price Canyon during storm events.

Geologic Marvels from the Snake River to the San Rafael Swell

• Craters of the Moon National Monument (west of Arco, ID) features lava tubes and cinder cones—a 0.5-mile detour off US-26/93. The landscape mimics a lunar surface, with 60+ lava flows.
• Price Canyon, on US-6, exposes the Book Cliffs—one of the world's longest continuous escarpments. Stop at the Price Canyon Recreation Area for short hikes overlooking the canyon.
• San Rafael Swell (east of UT-24) is a 75-mile-long anticline with slot canyons, dinosaur tracks, and petroglyphs. The Little Wild Horse Canyon hike (8 miles round-trip) is a must.

UNESCO and Cultural Sites

• Dinosaur National Monument (north of Jensen, UT, off US-40) is a UNESCO World Heritage Site candidate. The Quarry Exhibit Hall contains over 1,500 dinosaur bones embedded in the cliff face.
• Nine Mile Canyon (east of Price) is known as the world's longest art gallery, with over 1,000 petroglyph panels dating back to 1000 AD. Access via a 78-mile dirt road (check weather).
• Hanksville itself is a gateway to the Mars-like landscapes of Henry Mountains and Bentonite Hills. The local Burr Trail Grill serves fry bread and bison burgers.

Climatic Conditions and Route Aesthetics

• Idaho's desert climate: hot summers (85-95°F) and cold winters (15-30°F). Pack layers and sun protection.
• Utah's red rock country: extreme temperature swings. Spring/fall: 70°F days, 40°F nights. Summer: 100°F+ possible. Winter: snow possible but rare south of Price.
• Best light for photography: golden hour at Craters of the Moon (6-7 AM or 7-8 PM) and sunrise/sunset on the San Rafael Swell.

Fatigue Management & Rest Zones

• Take a break every 2 hours or 100 miles. Rest areas are located at: I-84 exit 168 (Bliss, ID), I-15 exit 364 (Willard, UT), US-6 near Soldier Summit (picnic tables, no services).
• Recommended overnight stops: Burley, ID (many chain hotels) or Price, UT (budget motels near US-6). For a unique stay, book the Red Moon Ranch near Hanksville (converted cattle ranch).
• Carry an emergency kit: extra water, blankets, and a paper map—cell service is spotty on US-6 and UT-24.

Family and Child Suitability

• Family-friendly stops: the Discovery Center in Ogden, UT (interactive science museum), and the Cleveland-Lloyd Dinosaur Quarry near Price (junior ranger program).
• Restaurants along the route: fast food in Twin Falls, ID; diners in Price (the Angry Goat Pub); and the Homestead Steakhouse in Green River (kid menu).
• Activities for children: fossil digging at the Dugway Geode Beds (west of Delta, UT—requires 4WD) and the million-year-old Trackways of St. George (dinosaur footprints you can touch).

Pet-Friendly Framework

• Most motels in Price and Green River allow pets ($10-25 fee). Craters of the Moon allows leashed dogs on trails. Paved rest areas on I-84 have pet relief areas.
• Water availability: carry a collapsible bowl; stations in Burley, Ogden, and Price have outdoor spigots.
• Veterinary clinics: Burley Animal Hospital (208-678-2221) and Price Creek Veterinary (435-637-1211) for emergencies.

Hidden Off-Route Spots

• American Falls Reservoir, ID (off I-84 exit 28): a scenic 5-mile detour for a picnic overlooking the Snake River.
• The Moki Dugway (UT-261, off US-191): a steep, unpaved switchback with breathtaking views of Goosenecks State Park—adequate for high-clearance vehicles.
• The Crystal Geyser near Green River: a cold-water geyser that erupts every 4-12 hours, reachable via a 2-mile dirt road.