Livingston to Thermopolis: Road Trip Guide through Montana and Wyoming

The drive from Livingston, MT to Thermopolis, WY covers 210 miles via US-89 South and US-20 East, typically 3.5 to 4 hours without stops. This route traces the Yellowstone River through Paradise Valley, crosses the Montana-Wyoming border at Gardiner, and passes the northern edge of Yellowstone National Park. A lesser-known fact: the town of Gardiner holds the distinction of being the only year-round entrance to Yellowstone, with the iconic Roosevelt Arch built in 1903. The highway follows the path of the old stagecoach route, and you'll notice the landscape shift from lush valley to high desert badlands.

US-89 and US-20 are well-maintained two-lane highways with occasional passing lanes. The speed limit is 65-70 mph on open stretches, but reduces to 45 mph through towns and 35 mph near Yellowstone entrances. Fuel stations are abundant in Livingston, Gardiner, and Cody, but sparse between Cody and Thermopolis (a 90-mile gap). Fill up in Cody.

• Fuel Economy Tip: Cruise at 65 mph for best mileage; headwinds in the Bighorn Basin can reduce efficiency.
• Road Condition: Snow possible October through April; check WYDOT and MDOT alerts.
• Toll Roads: None.

Traffic is moderate in summer, with RVs and wildlife crossings. The route is fully paved and suitable for all vehicles. Cell service is spotty between Gardiner and Cody, and nonexistent between Cody and Thermopolis in some valleys. Download offline maps.

• Best Time: May-September for mild weather; fall offers golden colors and fewer crowds.
• Winter Driving: Chains may be required; heavy snow possible near Beartooth Highway junction.

Paradise Valley, south of Livingston, offers dramatic peaks of the Absaroka Range and the Yellowstone River. Keep an eye out for bald eagles and pronghorn. At Gardiner, the Roosevelt Arch marks the Yellowstone boundary; you can enter the park briefly for a glimpse of the Gardner River (daily fee applies). The Yellowstone River flows alongside the road for miles, with multiple pullouts for photography.

• Iconic View: Devil's Slide, a unique rock formation just north of Gardiner.
• Birding: Look for sandhill cranes in the wet meadows near Corwin Springs.

Between Gardiner and Cody, the road climbs over Dead Indian Pass (elevation 7,900 ft) with panoramic views of Sunlight Basin. In Cody, the Buffalo Bill Center of the West (five museums in one) is a must. West of Cody, the Shoshone River Canyon offers striking red rock cliffs. For a detour, follow the Chief Joseph Scenic Byway (WY-296) for more alpine scenery.

• Local Commerce: Cody's historic downtown has Western-themed shops and art galleries.
• UNESCO Adjacent: Yellowstone National Park (UNESCO World Heritage Site) is just south of Gardiner; a quick entry rewards you with geothermal features like Mammoth Hot Springs.

From Cody to Thermopolis, the landscape transitions to high desert and badlands. The town of Meeteetse (pop. 300) offers a glimpse into Wyoming's ranching past. Thermopolis is home to the world's largest mineral hot spring (Hot Springs State Park free to enter). The Wyoming Dinosaur Center is a highlight for fossil enthusiasts.

• Hidden Gem: The 'Legend Rock Petroglyph Site' near Thermopolis has over 1,000 ancient carvings.
• Free Attraction: The public bathhouse in Hot Springs State Park allows free bathing in the hot springs.

Road quality is good, but be alert for wildlife at dawn/dusk: deer, elk, and occasionally bison near Gardiner. Shoulder widths vary; some sections lack guardrails. Rest areas: two along US-89 in Montana (north of Gardiner) and one at the Wyoming border (Wind River Canyon scenic overlook).

• Fatigue Breaks: Stop at Gardiner (coffee shops), Cody (museum or parks), and the Wind River Canyon pullout.
• Emergency Services: Cell coverage is minimal; carry water and blankets.

Family-friendly stops: Yellowstone Park (entry fee includes kid-friendly ranger programs), the Buffalo Bill Center (hands-on exhibits), and the Wyoming Dinosaur Center (dig simulator). Pet-friendly: most outdoor areas allow leashed pets; Gardiner's town park has a dog area. Hot Springs State Park permits pets on a leash.

• Best for Kids: The 'Dig It' exhibit at the Dinosaur Center.
• Pet Rest Stops: There are several BLM lands along the route where pets can run off-leash.

Plan for a full day to enjoy stops. For curated discovery, read how to find the best stops and hidden gems between cities. The best stops Livingston, MT to Thermopolis, WY include Paradise Valley overlooks, Gardiner's historic district, Cody's rodeo (summer evenings), and the hot springs in Thermopolis. How long to drive Livingston, MT to Thermopolis, WY? 3.5 hours without stops, but budget 6-8 hours with exploration. Is it worth driving Livingston, MT to Thermopolis, WY? Absolutely; the varied scenery and unique attractions make it a rewarding journey. For things to do between Livingston, MT and Thermopolis, WY, consider fly-fishing on the Yellowstone, a detour to the Beartooth Highway (if open), or soaking in the State Bathhouse.