Sheridan to Athol Road Trip Guide: Scenic Drive

The Bighorn Mountains form the dramatic western backdrop as you leave Sheridan, WY on I-90 West. This 580-mile route to Athol, ID passes through the heart of the Rocky Mountains and across the arid Columbia Plateau. The drive takes approximately 9 hours without stops, but the natural wonders along the way demand exploration.

The route follows the old Yellowstone Highway corridor, used by early 20th-century travelers heading to the national park. Today, it provides access to three states and diverse ecosystems. Knowing how to find the best stops and hidden gems between cities can transform a simple transit into an unforgettable journey.

This guide answers key questions: best stops Sheridan, WY to Athol, ID, how long to drive Sheridan, WY to Athol, ID, and is it worth driving Sheridan, WY to Athol, ID. The verdict: yes, for the landscapes alone.

Road quality: I-90 in Montana and Idaho is excellent with wide shoulders. US-14 in Wyoming is winding with steep grades; watch for trucks. Elk and deer crossing signs are common, especially at dawn/dusk. Wildlife collisions are a real risk.

Weather: Summer (July-Aug) is pleasant, 70-85°F, with afternoon thunderstorms. Winters (Dec-Feb) bring snow and ice; road closures occur. Spring (May-June) has rain and mudslides. Fall (Sep-Oct) offers brilliant foliage and mild temps.

• Fatigue management: rest stops every 30-50 miles on I-90. Recommended breaks: Buffalo WY rest area (picnic tables), West Yellowstone Visitor Center (coffee), Butte rest area (views)
• Family suitability: easy with planned stops. Yellowstone Junior Ranger program engages kids. Cody's Buffalo Bill Center of the West (5 museums). Missoula's Carousel and Splash Montana (water park)
• Pet-friendly: many motels allow pets (La Quinta in Butte, Super 8 in Missoula). Yellowstone permits leashed pets only on boardwalks and roads. Off-leash areas in Missoula at Jacob's Island Dog Park

Hidden off-route spots: Less known than Old Faithful is the Lamar Valley (east Yellowstone) for wolf watching. The Beartooth Highway (WY-212) from Cooke City is a stunning detour if open. In Montana, the Garnet Ghost Town (near Missoula) offers a glimpse of 1890s gold rush life. For a quick swim, visit the Quinn's Hot Springs (west of Missoula, off I-90 exit 85).

The journey transitions from the pine-covered Bighorns to the thermal basins of Yellowstone, then to the lush Bitterroot Valley and forested Coeur d'Alene region. Key natural attractions include the Bighorn National Forest, the Shoshone River canyon, Yellowstone's geysers, and Flathead Lake.

• Bighorn Scenic Byway (US-14): offers pullouts like Shell Falls (270-foot cascade)
• Yellowstone National Park: Old Faithful, Grand Prismatic Spring, and wildlife such as bison and elk
• Lewis and Clark Pass (MT): historic site with interpretive signs
• National Bison Range (MT): drive-through wildlife viewing (seasonal)

UNESCO World Heritage: Yellowstone National Park is a designated World Heritage Site. Its geothermal features and ecosystems are globally unique. The park's 2.2 million acres are a preserve of natural wonder.

Local commerce: Gift shops in West Yellowstone sell obsidian and geode souvenirs. In Butte, the World Museum of Mining offers history. Missoula's farmers market (Saturdays) features local huckleberry products. Athol's Silverwood Theme Park (only a few miles north) is a major attraction.

Fuel stations cluster around towns like Buffalo, Greybull, Cody, West Yellowstone, Butte, Missoula, and Coeur d'Alene. Between these, stretches of 50-70 miles without services exist, especially through Yellowstone and the Bitterroot Mountains. Always fill up when you have half a tank.

Road conditions vary: I-90 is well-maintained, but US-14 through the Bighorns can be narrow with sharp curves. Winter travel requires snow tires and chains. Summer brings construction delays. The highest pass is the Bighorn Mountains at 9,000 feet.

• Gas prices: lowest in Sheridan (~$3.10/gal), highest in West Yellowstone (~$3.60/gal)
• Diesel widely available; RV-friendly stations with pull-throughs exist in Cody and Missoula
• EV charging: Tesla Superchargers in Butte, Missoula, and Coeur d'Alene; Level 2 chargers in Cody and West Yellowstone

Tolls: None on this route. Permits: A National Park pass needed if entering Yellowstone ($20/vehicle or $80 annual). Roadside assistance: AAA coverage available, but cell service is spotty in mountain passes.