Pocatello to Thermopolis: A Scenic Wyoming Road Trip Guide

The route from Pocatello, ID to Thermopolis, WY covers 285 miles of varied terrain, from the Snake River Plain to the Bighorn Basin. This drive typically takes 4.5 to 5 hours, making it a feasible day trip or a leisurely overnight journey.

One notable historical fact: Thermopolis is home to the world's largest mineral hot spring, the Hot Springs State Park, which has been a public attraction since 1897. This guide highlights the must-see stops and practical details for an enjoyable road trip.

Check weather before departure, as winter storms can make mountain passes hazardous. Summer thunderstorms bring sudden downpours; carry an emergency kit.

For family fun, stop at the Idaho Falls Zoo at Tautphaus Park (mile 50) or the Wyoming Dinosaur Center in Thermopolis, which features real fossils and a working quarry.

Fatigue management: Rest areas are available at mile 150 near Mud Lake and at the Wind River Canyon overlook. For overnight stays, consider the hotel in Dubois or camping in Hot Springs State Park. Off-route, the ghost town of Kirwin (20 miles south of Meeteetse) offers a step back in time, accessible via gravel roads.

For more tips on how to find the best stops and hidden gems between cities, check Wayro's guide.

Shortly after Arco, you encounter the Craters of the Moon National Monument, a volcanic landscape of lava fields and cinder cones. The visitor center offers interpretive exhibits, and a 7-mile loop drive provides access to trails.

Further east, the Wind River Canyon south of Thermopolis is a stunning geological spectacle with towering walls and the Wind River cutting through. The canyon is rich in Native American petroglyphs.

For local commerce, Thermopolis boasts the Hot Springs State Park with its free State Bath House, and the town along Broadway Street features cafes and shops. The ranching heritage is evident in the weekly livestock auctions at the Hot Springs County Fairgrounds.

Start on I-15 south from Pocatello, then take US-26 east through Blackfoot and Idaho Falls. Continue on US-20/US-26 through Arco, then US-20 to Mud Lake, and finally US-26 into Wyoming, passing through Dubois before reaching Thermopolis.

• Fuel stops: Regular stations in Blackfoot (mile 20), Arco (mile 100), Dubois (mile 215), and Thermopolis (end).
• No tolls on this route.
• Road conditions: Well-maintained highways, but watch for wildlife at dawn/dusk.