Cheyenne to Riverton Drive: Guide, Stops & Tips

This drive along I-25, US-20/26, and US-287 crosses the high plains and the southern tip of the Bighorn Basin. It's a journey of about 320 miles, typically taking 5 to 5.5 hours of pure driving time—so plan for a full day with stops.

Geologically, you'll transition from the granite of the Laramie Range to the sedimentary basins of central Wyoming, with the Wind River Canyon as a dramatic finale. The road follows part of the Oregon Trail corridor, a historic artery for westward expansion.

Gas is available in Cheyenne, Wheatland, Casper, and Riverton, but stretches like between Shoshoni and Riverton have limited services. Fuel prices in Wyoming are generally 10-15% lower than the national average, and Casper often has the cheapest along this route. Plan to fill up when you see a station in a town.

• Highway quality is generally excellent on I-25 and good on US-20/26; watch for occasional construction in summer.
• Cellular coverage is spotty between Wheatland and Casper and again between Shoshoni and Riverton on some carriers; download offline maps.
• Rest areas exist at the Wyoming Welcome Center near Cheyenne, just north of Wheatland, and west of Casper; they feature picnic tables and restrooms.

The route offers a sampler of Wyoming's landscapes: from the shortgrass prairies near Cheyenne to the juniper-dotted hills of the Oregon Trail, then the red cliffs of the Wind River Basin. The Wind River Canyon, between Thermopolis and Shoshoni, is a scenic highlight with sheer rock walls and the Wind River below.

For culture, detour to the National Historic Trails Interpretive Center in Casper (open daily, $10 admission) to learn about the pioneer trails. In Thermopolis, a 45-mile detour, you'll find Hot Springs State Park, home of the world's largest mineral hot spring, and the Wyoming Dinosaur Center—both worth the extra time.

Local commerce includes the Wyoming Hereford Ranch near Cheyenne, the Platte County Fair in Wheatland (July), and the Shoshoni Museum in Shoshoni, which preserves the region's Arapaho and Shoshone heritage.

Wildlife, especially deer and antelope, are active at dawn and dusk; use high beams when possible and scan the roadsides. Weather can change rapidly; check forecasts and carry tire chains from October to April. The route is generally safe, but winter storms can close I-25 north of Cheyenne, so check road conditions via WYDOT's app.

For families, the route is very child-friendly: the Douglas Railroad Interpretive Center (Douglas, WY) has a train playground, and the Casper Planetarium offers daily shows. Kids will also enjoy the dinosaur exhibits at the Wyoming Dinosaur Center, though it's a detour to Thermopolis.

For fatigue management, take a break every 2 hours. Rest zones are plentiful: the rest area north of Wheatland is a good spot, as is the Casper city park near the North Platte River. If you need overnight options, Douglas and Casper have numerous chain hotels.