Thermopolis to Havre: Wyoming-Montana Road Trip Guide

Beginning in the town with the world's largest mineral hot spring, this route climbs from the Bighorn Basin into the Montana plains. The drive (roughly 340 miles) passes through the Wind River Canyon, a 2,500-foot-deep gorge carved by the Bighorn River.

Table below summarizes key route metrics.

Road quality is generally good, but watch for deer and antelope, especially at dawn and dusk. The Wind River Canyon has tunnels where you must slow down. In winter, carry chains and be prepared for closures.

For families, the David T. Vernon Collection in Thermopolis features dinosaur fossils. In Billings, the ZooMontana is a kid favorite. Many restaurants have high chairs.

Pet-friendly lodging is available in most towns, but note that hot springs (like those in Thermopolis) often restrict pets. Plan for pet exercise at rest areas.

Plan rest breaks every 2 hours: rest areas with restrooms and picnic tables are plentiful. Use a fatigue-management strategy: rotate drivers if possible, and consume caffeine in moderation.

For planning your own highlights, consider using how to find the best stops and hidden gems between cities.

Seasonal aesthetics vary: autumn turns the canyon gold, spring brings wildflowers, and summer offers clear skies but potential heat. Best stops Thermopolis, WY to Havre, MT include Hot Springs State Park, Wind River Canyon, and Little Bighorn Battlefield National Monument (a short detour).

To answer is it worth driving Thermopolis, WY to Havre, MT: yes, for its geological wonders and quiet, uncrowded roads. Things to do between Thermopolis, WY and Havre, MT include hiking, fossil hunting, and visiting historic sites.

The primary route is US-20 West to Shoshoni, then US-26 North through the Wind River Canyon, merging onto I-25 North near Casper. Follow I-25 North to US-87 North (Buffalo), then continue on I-90 West to Montana, exiting onto US-87 North towards Billings, finally taking US-87 North to Havre.

Expect toll-free travel and well-maintained highways. There are no major cities, but towns like Worland, Buffalo, and Billings offer fuel, lodging, and food.

• Fuel stops every 50-70 miles; not available late at night in smaller towns.
• Cell service is spotty between towns, especially in mountains.
• No tolls on entire route.

The Wind River Canyon offers sheer cliffs and the Wedding of the Waters, where the Wind River meets the Bighorn Lake. Further north, the Bighorn Mountains provide scenic passes. Near Buffalo, visit the Jim Gatchell Memorial Museum for local history.

Culinary options range from classic steakhouses in Buffalo to cafes serving huckleberry pie in Red Lodge (a short detour). Local commerce thrives in small-town businesses like antique shops and art galleries.

A UNESCO World Heritage Site lies near the route: Yellowstone National Park, accessible via a detour west from the town of Cody, but not directly on the path. However, the route itself offers natural wonders like Hot Springs State Park in Thermopolis, where you can soak in mineral waters.

For a unique hidden gem, visit the Legend Rock Petroglyph Site, southeast of Thermopolis, featuring thousands of ancient carvings.