Livingston to Lava Hot Springs: A Montana-Idaho Road Trip Guide

The drive from Livingston, MT to Lava Hot Springs, ID crosses the Continental Divide at Homestake Pass, the highest point on I-90 between the Mississippi River and the Pacific Ocean at 6,329 feet. This 310-mile journey takes about five hours without stops, but the route offers a blend of Montana's rugged mountain landscapes and Idaho's volcanic plains. You'll pass through historic mining towns, along rushing rivers, and end at a classic geothermal resort. Is it worth driving Livingston, MT to Lava Hot Springs? Absolutely—the hot springs alone justify the trip, but the journey itself is packed with natural and cultural treasures. For tips on finding hidden gems along any route, see how to find the best stops and hidden gems between cities.

Fuel stations are plentiful along I-90 and I-15, with major stops in Butte, MT (mile marker 220) and Idaho Falls, ID (mile marker 118). Expect gas prices to be slightly higher in Montana than in Idaho. Road quality on interstates is excellent, but watch for livestock and wildlife, especially between Livingston and Butte on I-90. Winter driving requires snow tires as Homestake Pass can be icy. There are no tolls on this route.

• Recommended rest areas: Pipestone Rest Area (I-90 near Whitehall, MT) and Beaverhead Rest Area (I-15 near Dillon, MT)
• Alternative scenic route: Take US-191 south from Livingston through Yellowstone National Park (adds 2 hours) for geysers and wildlife

The first leg from Livingston to Butte follows the Yellowstone River valley with views of the Absaroka and Gallatin Ranges. As you climb Homestake Pass, the landscape opens to alpine meadows and conifer forests. Butte, nicknamed the 'Richest Hill on Earth,' showcases its copper mining heritage with the Berkley Pit superfund site and a historic downtown. Beyond Butte, I-15 descends into the Big Hole Valley, a wide agricultural basin dotted with cattle ranches. South of Dillon, you cross into Idaho near Monida Pass (elevation 6,820 ft). The scenery shifts to the Snake River Plain, a volcanic basalt plateau. Idaho Falls offers the River Walk along the Snake River and the Idaho Falls Temple. Finally, US-20 west leads to Lava Hot Springs, a small town built around natural geothermal pools that have been a resort since 1915.

• Montana segment: Dramatic mountain passes, historic mining towns
• Idaho segment: Wide plains, lava flows, and hot springs
• Local commerce highlights: Butte's copper gift shops, Idaho Falls' farmer's market (summer), Lava Hot Springs' mineral water products

For fatigue management, plan rest stops every 90 minutes. The Pipestone Rest Area (east of Butte) and Beaverhead Rest Area (south of Dillon) have clean restrooms and picnic tables. If traveling with kids, consider the following things to do between Livingston and Lava Hot Springs: the Mining Museum in Butte, the Barnard Stockade in Dillon (a replica 1800s fort), and the Idaho Falls Zoo at Tautphaus Park. For families, Lava Hot Springs has a 'Large Pool' with a diving platform and a 'Indoor Pool' open year-round, but supervise children near hot water. Pet-friendly framework: Most rest areas allow leashed dogs, but hot springs generally do not allow dogs in the pools. The town has a dog park near the Portneuf River. Hidden off-route spots: Earthquake Lake (45 minutes from I-90 near West Yellowstone) is a sobering site from the 1959 quake, and the ghost town of Bannack State Park (east of Dillon) offers preserved pioneer buildings. For safety, carry water and a spare tire, especially on remote stretches.

• Family stops: Butte's Our Lady of the Rockies overlook, Dillon's Beaverhead County Museum, Idaho Falls' Greenway Trail
• Pet-friendly stops: Rest areas, Butte's Highland Park, Idaho Falls' Snake River Walk (dogs on leash)
• Fatigue management: Rotate drivers, use rest areas every 90 minutes, and avoid night driving in wildlife-heavy zones