Road Trip Guide: Thermopolis, WY to Pinedale, WY

When you leave Thermopolis, home to the world's largest mineral hot spring, you'll soon enter the Wind River Canyon, where the highway hugs the river between 2,000-foot canyon walls. This route via U.S. 20 and U.S. 26 is a classic Wyoming drive, offering a surprising mix of desert badlands, alpine lakes, and historic towns.

This guide covers the essentials: driving time, key stops, natural wonders, and practical tips. You'll also learn how to use our how to find the best stops and hidden gems between cities method to tailor the drive to your interests.

Here are the route basics:

Driving Time and Road Quality

The drive from Thermopolis, WY to Pinedale, WY takes about 2 hours and 50 minutes without stops. The roads are well-maintained asphalt, with occasional construction in summer. U.S. 20 westbound from Thermopolis to Shoshoni is a two-lane road through the Wind River Canyon; expect slower speeds due to curves and heavy truck traffic.

• Winter driving can be hazardous; check weather forecasts and carry chains.
• The speed limit is typically 65 mph on open roads, 55 mph in mountainous areas.

Fuel and Route Economics

Gas stations are sparse; the most reliable fuel stops are in Shoshoni, Lander, and Fort Washakie. Prices tend to be higher in tourist areas like Pinedale, so it's economical to fill up in Lander. Carry extra water and snacks, as there are long stretches with no services.

• Expect to pay around $3.50 per gallon (as of 2025).
• There are no tolls on this route.

Climate and Route Aesthetics

The climate varies dramatically: the canyon area is milder, while the high desert around Lander is arid and windswept. West of Lander, the route climbs into the Wind River Range, with forests and alpine meadows. Best driving conditions are June through September, when the weather is clear and the wildflowers bloom.

Family and Child Suitability

The drive is very family-friendly. The Wind River Canyon offers an easy walking path for kids. The Boysen State Park near Shoshoni has a playground and swim beach. In Lander, the Wind River Wild Horse Sanctuary is a hit with children, though it requires an off-road detour.

Best Stops and Things to Do

• Shoshoni: Be sure to check out the Shoshoni Rock Shop for gemstones and fossils.
• Lander: The Lander Pioneer Museum is a great history stop.
• Fort Washakie: Visit the Sacajawea Cemetery where Sacagawea of the Lewis and Clark expedition is buried.
• Dubois: See the National Bighorn Sheep Center.
• Pinedale: Take a scenic detour to Soda Lake for birdwatching.

For a deeper dive into route planning, see our guide on how to find the best stops and hidden gems between cities.

Pet-Friendly Framework

Most rest areas have pet exercise zones, and many motels in Lander and Pinedale accept pets. Be mindful of wildlife: keep pets leashed, especially near the Wind River Range where bears are active.

Fatigue Management and Rest Zones

Plan to stop every two hours. Rest areas are located at Wind River Canyon, Boysen State Park, and near Lander. If you get drowsy, pull over at a designated rest stop or scenic overlook; do not park on the shoulder.

Hidden Off-Route Spots

If you have time, detour 20 miles south of Dubois to Ring Lake for primitive camping and trout fishing. Another hidden gem is the Sinks Canyon State Park near Lander, where the Middle Fork of the Popo Agie River disappears into a cave and resurfaces a half-mile downstream. It's a fascinating sight.

Infrastructure Safety

The route has good cell coverage in towns, but there are dead zones between Shoshoni and Lander. Carry a paper map. Roadside assistance is available, but response times can be long in remote areas. Always carry a spare tire and extra coolant.

Natural Landmarks and Attractions

The Wind River Canyon has a notable geological feature: the 'Wind River Canyon Wall', a cliff face with ancient petroglyphs. Just south of Dubois, you'll find the Wind River Indian Reservation, home to the Eastern Shoshone and Northern Arapaho tribes. The reservation is a good place to learn about Native American history and purchase authentic crafts.

UNESCO World Heritage Site

Although not directly on the route, Yellowstone National Park is a mere 80 miles north of Pinedale. This UNESCO World Heritage Site is a great day-trip extension, featuring geysers, hot springs, and wildlife.

Culinary Infrastructure & Local Culture

Lander offers a range of eateries, from cowboy cafes to farm-to-table restaurants. Try the bison burger at the Lander Bar or a huckleberry milkshake at Gannett Grill. In Pinedale, the Museum of the Mountain Man showcases fur trade history. For local flavor, visit the farmers' markets in Lander and Pinedale during summer.