Riverton to Green River: Wyoming's Landmark Road Trip

This 120-mile drive along US-26 and US-287 crosses the Wind River Canyon, where the river has carved a 2,500-foot-deep gorge through the Owl Creek Mountains, exposing some of the oldest rocks in North America—the Precambrian granite is over 2.8 billion years old.

The route connects the Wind River and Green River basins, two major watersheds of the Continental Divide. Riverton sits at 4,961 feet, while Green River rests at 6,112 feet, so you'll climb 1,151 feet in elevation over the journey.

Plan for 2 hours and 15 minutes of driving time without stops, but expect to add at least an hour for exploring the canyon and side attractions.

Wind River Canyon offers 13 miles of sheer granite walls, bighorn sheep, and fly fishermen. Just south of Shoshoni, the Boysen Reservoir is a reservoir on the Wind River with excellent walleye fishing (state license required).

Sinks Canyon State Park features the Sinks, where the river vanishes into a limestone cave, and the Rise, where it emerges a half-mile away; a short nature trail connects the two phenomena. Trail etiquette: stay on marked paths.

In Thermopolis, the Wyoming Dinosaur Center houses a full Diplodocus skeleton, with excavation sites open for tours (fee $12 adults). The Hot Springs State Park offers free public hot mineral pools—call ahead for hours (307-864-2176).

• Hidden off-route spot: Ten Sleep Canyon, a scenic 50-mile detour north on WY-433.
• Local commerce: The Shoshoni Trading Post sells Native American beadwork and fresh fry bread.
• UNESCO World Heritage Sites: none on this route; the closest is Yellowstone, 180 miles north.

Climatically, summers (June-August) average 80°F afternoons but drop 30 degrees at night; winters can bring snow squalls. The canyon's microclimate is typically 10°F cooler than the surrounding plains.

For the best stops Riverton, WY to Green River, WY include these natural attractions; check road conditions for US-26/287 in winter at 511wyoming.net.

US-26/287 narrows through the canyon with guardrails and 55 mph speed limits; watch for falling rocks and wildlife, especially deer at dusk. The highway is a major trucking route, so keep right and pass with care.

For families, the Wyoming Dinosaur Center's interactive exhibits and the Hot Springs State Park's swim-friendly pools are popular; dinosaurs appeal to kids aged 4-12.

Pet-friendly options include the veterans' memorial walkway at Hot Springs State Park (leash required) and the dog-friendly parking areas at Boysen; avoid peak heat hours in summer.

• Rest stops: Boysen State Park (mile 28) has picnic tables, and the Sinks Canyon overlook (mile 60) offers short trails.
• Fatigue management: Take a break every 2 hours; the route is short enough to finish in a day.
• Roadside safety: Carry a spare tire and water; services are at least 30 miles apart.

Culinary stops are limited: Thermopolis has a handful of family diners, and Shoshoni has a gas station deli. In Riverton, try the local Mexican food at El Toro.

To enrich your trip, learn how to find the best stops and hidden gems between cities.

Ultimately, is it worth driving Riverton, WY to Green River, WY? Absolutely—the canyon alone justifies the trip, offering a compactly scenic and culturally engaging journey.

Gas stations are sparse along US-26, with the last reliable fuel before the canyon at Shoshoni (mile 23); Thermopolis has several options, but prices average 10-15 cents higher than Riverton due to rural transport costs.

Cell service is nonexistent in the canyon and intermittent on the highway; download offline maps before leaving Riverton. Public restrooms are available at Sinks Canyon State Park (fee $5/vehicle) and at Hot Springs State Park in Thermopolis (free).

• Driving time: how long to drive Riverton, WY to Green River, WY is about 2h 15m.
• Route: US-26 east to US-287 south, then I-80 west into Green River.
• Road condition: Paved two-lane highway, well-maintained.

For altitude acclimatization, start hydrating before you leave. The dry air at these elevations can accelerate dehydration, and you'll be spending time outdoors at canyon viewpoints.