Lolo, MT to Alpine, WY: Epic Road Trip Guide

This 340-mile journey traces the path of the Lewis and Clark Expedition, following the Clearwater and Salmon River corridors before cresting the Continental Divide at 7,000-foot Teton Pass. The route's most striking quirk: you'll cross two time zones (Mountain to Pacific and back) within 120 miles, a reminder of the region's rugged topography.

Most drivers plan 6–7 hours of pure driving, but budget at least two days to absorb the landscape. The route's centerpiece, Yellowstone National Park, lies just 20 miles east of Alpine, Wyoming, making this drive a prelude to one of America's most iconic wilderness areas.

From Lolo, head south on US-93, then take ID-28 through the Lemhi Valley to Salmon, Idaho, before switching to US-26 east over Teton Pass. Expect winding mountain roads and occasional gravel sections between Salmon and Alpine; the route is fully paved but narrow in places.

• Fuel stops are sparse: fill up in Lolo, Missoula, or Salmon—the latter is the last reliable station for 80 miles.
• No tolls or border crossings; the route crosses into Idaho and back into Wyoming.
• Cell service drops frequently; download offline maps.

For cost-effective planning, use gas apps to compare prices—Missoula tends to be cheapest, while Alpine has premium rates due to its tourist location. Rest areas exist at Lolo Pass, Lost Trail Pass, and Teton Pass, but they are primitive with no services.

Winter driving is challenging: Teton Pass (8,431 ft) often closes due to avalanches, so check conditions. Summer brings afternoon thunderstorms, and wildlife, especially elk and bighorn sheep, frequent the roadway at dawn and dusk. Use daytime running lights and carry chains.

Families will find fun at the Teton Valley Historical Museum in Driggs, Idaho, while kids can stretch at the playground in Victor. Pet owners should leash pets at rest stops; bears are active in the region, so keep food secured.

To combat fatigue, plan stops every 2 hours. The Lost Trail Pass rest area offers scenic overlooks, and the town of Salmon has several parks for picnics. Consider overnighting in Salmon or Driggs to break the drive.

Nonetheless, is it worth driving Lolo, MT to Alpine, WY? Absolutely—the route offers unmatched mountain scenery and access to two national parks, making it a memorable journey for any traveler.

The drive alternates between dense pine forests, high desert sagebrush, and alpine meadows. Lolo Pass (5,236 ft) marks the start of the Bitterroot Mountains, where winter snowpack can linger into June. The Salmon River Canyon, known as the 'River of No Return,' offers dramatic gorge views and is a haven for rafters.

The region is rich in Nez Perce and Shoshone history; the Sacagawea Interpretive Center in Salmon honors the Lemhi Shoshone woman who guided Lewis and Clark. Local commerce thrives on outfitters and wild game processing—stop at a roadside vendor for huckleberry jam or smoked trout.

For a deep dive into hidden gems between cities, check out how to find the best stops and hidden gems between cities. Don't miss the ghost town of Custer, Idaho, or the hot springs at Goldbug (reachable via a short hike).