Hanksville to Spearfish: A 690-Mile Road Trip Guide

Departing Hanksville, UT (elevation 4,335 ft), you'll traverse 690 miles of dramatic transitions: from the stark badlands of Utah's San Rafael Swell to the pine-clad Black Hills of South Dakota. The route follows US-24 east to I-70, then I-25 north through Colorado and Wyoming, and finally I-90 east to Spearfish, SD.

One notable quirk: the Continental Divide is crossed twice—once at 8,000 ft on US-40 in Colorado and again at 7,000 ft on I-80 in Wyoming—making this a true watershed wander. Expect about 10.5 hours of pure driving, but plan for 3-4 days to absorb the sights.

Road quality is generally good, but watch for wildlife, especially deer and elk at dawn/dusk in Wyoming and South Dakota. Winter travel demands tire chains and emergency kits; summer brings sudden thunderstorms and hail. Fatigue is a risk on long, empty stretches—use rest areas every 2 hours, and consider spending a night in Rawlins, WY, or Gillette, WY to break the drive.

Family and Pet-Friendly Framework

Most roadside parks and rest stops are family-friendly. For kids, Dinosaur Journey Museum in Fruita, CO (near Grand Junction) offers hands-on exhibits. Pets are allowed in many outdoor areas, but national parks restrict them; keep leashes handy. Hidden off-route spot: the Hot Springs at Thermopolis, WY (a 90-mile detour north from I-25) offer free mineral pools for a soak.

Remember, the key to a successful trip is flexibility. For tips on discovering even more stops, check how to find the best stops and hidden gems between cities.

This route relies on two interstates, I-70 and I-25, which are well-maintained but subject to weather closures in winter. Fuel stations cluster around towns like Green River, Grand Junction, and Cheyenne; plan stops every 150-200 miles to avoid dry stretches, especially in Utah and Wyoming.

• Average gas price: $3.50/gal, total fuel cost ~$160 for a sedan (assume 30 mpg).
• Major elevation changes: Hanksville 4,335 ft → 8,000 ft near Vail Pass → 5,000 ft in Cheyenne → 3,640 ft in Spearfish.
• Cell coverage: intermittent in Utah and Wyoming; download offline maps.

UNESCO World Heritage Sites

Two sites lie near the route: Dinosaur National Monument (an hour north of Vernal, UT) and Mesa Verde National Park (near Cortez, CO). Both require detours of 60+ miles, but they offer unmatched prehistoric fossils and cliff dwellings. If you choose one, Mesa Verde's guided tours are essential.

Utah's stretch features the iconic Goblin Valley State Park (off UT-24) with its bizarre hoodoos, and the San Rafael Swell's reef-like ridges. Colorado's section includes the Colorado National Monument near Grand Junction (a memorable rim drive) and the dramatic Glenwood Canyon on I-70, where the interstate hugs the Colorado River between sheer cliffs.

In Wyoming, the landscape flattens into high plains, with the Medicine Bow National Forest visible to the west. The Black Hills of South Dakota surprise with granite spires and evergreen forests, culminating in the Needles Highway and Mount Rushmore (a short detour from the route).

Culinary and Cultural Stops

Local diners and cafes dot the route: try a green chili omelet in Grand Junction, a bison burger in Cheyenne, and a pasty (a miner's meat pie) in Lead, SD. Small-town museums, like the Museum of the West in Grand Junction, showcase the region's mining and ranching heritage. For a taste of local commerce, browse the Western wear shops in Sheridan, WY.