Laramie, WY to Missoula, MT: Ultimate Road Trip Guide

The route from Laramie, WY (elevation 7,165 ft) to Missoula, MT (elevation 3,200 ft) traverses a geologic tapestry where the Laramie Basin meets the Bighorn Mountains, crosses the Wyoming Basin, and ascends into the Bitterroot Range. This drive, covering roughly 580 miles via I-80 W and I-90 W, typically takes about 9–10 hours of pure driving time, but the real reward lies in the detours and stops that reveal America's mountain west.

One local quirk: near Thermopolis, WY, you'll cross the Wind River Canyon, a 2,500-foot-deep gorge carved by the Wind River through the Owl Creek Mountains—one of the few places where the road passes through a canyon that is also a national scenic byway (Wyoming Scenic Byway 320).

How Long to Drive Laramie, WY to Missoula, MT?

Without stops, the drive is about 8 hours 45 minutes. However, plan for 10–12 hours to enjoy key attractions. The route is fully paved and maintained year-round, though winter conditions can extend travel time significantly.

Is It Worth Driving Laramie, WY to Missoula, MT?

Absolutely. This route offers an authentic cross-section of the Rocky Mountain region, from high prairie to alpine forests. For those seeking hidden gems and curated experiences, check out this guide on how to find the best stops and hidden gems between cities.

Infrastructure Safety & Road Quality

Both interstates are well-signed and lit intermittently. Wyoming enforces strict seatbelt laws and hands-free driving. Montana has a “reasonable and prudent” speed limit on interstates (80 mph daylight). Beware of sudden fog in the Wind River Canyon and icy patches in the Bighorns during winter. Emergency services may be limited in remote stretches; carry a first-aid kit and blankets.

Family and Child Suitability

The drive is family-friendly with many educational stops. Hot Springs State Park offers a wading pool for kids. The Wyoming Dinosaur Center in Thermopolis has hands-on exhibits. In Billings, ZooMontana is a small, manageable zoo. Bozeman's Museum of the Rockies features dinosaur fossils and a planetarium. Recommended rest stops with playgrounds: Rest areas near Rawlins (mile marker 198 on I-80) and in Buffalo (west of town on I-25).

Pet-Friendly Framework

Most hotels along the route accept pets (Best Western, La Quinta, Motel 6) with fees ($20–50). National forests and many state parks allow leashed dogs. Rest stops usually have pet relief areas. Note: Hot Springs State Park does not allow dogs in the pools, but they are permitted on trails.

Hidden Off-Route Spots

• Legend Rock Petroglyph Site (near Thermopolis): over 1,000 ancient carvings, free, 4WD access recommended.
• Medicine Lodge State Archaeological Site (near Hyattville, WY): pictographs and a lovely campground.
• Pictograph Cave State Park (south of Billings): cave with hundreds of pictographs.
• Lewis and Clark Caverns State Park (near Whitehall, MT): guided cave tours 45 min off I-90.

Fatigue Management & Rest Zones

Plan stops every 2 hours. Recommended rest areas:

• Rawlins Rest Area (I-80 eastbound, mile 220): clean, vending machines.
• Buffalo Rest Area (I-25 westbound): scenic view of Bighorns.
• Sheridan Rest Area (I-90 westbound): picnic tables.
• Billings Rest Area (I-90 eastbound, mile 446): large with pet area.
• Bozeman Rest Area (I-90 westbound, mile 310): restrooms open 24/7.
• Butte Rest Area (I-90 westbound, mile 226): historic mining town nearby.

Highways and Roads

The primary route uses I-80 W from Laramie to Rawlins (approx. 110 miles), then transitions to US-287 N through the Wind River Canyon, joining US-20 W to reach Thermopolis. From Thermopolis, continue north on US-20 to Worland, then US-16 W over the Bighorn Mountains to Buffalo (WY). There, pick up I-90 W to Sheridan, WY, then Billings, MT, and follow I-90 W all the way to Missoula. An alternate is to stay on I-80 to Rock Springs, then US-191 N through Jackson Hole, but that adds time and distance.

• Total distance: ~580 miles per Google Maps (varies by detours).
• Gas stations are frequent along I-80 and I-90, but between Rawlins and Thermopolis, stretches of 60+ miles without services.
• Cell reception: spotty between Rawlins and Thermopolis, and over the Bighorn Mountains; download offline maps.

Fuel and Route Economics

Gas prices in Wyoming and Montana are typically lower than the national average, but can spike in remote areas. Fill up in Laramie or Rawlins before heading north. Estimated fuel cost for a standard sedan: ~$55–70 (based on 25 mpg and $3.20/gal average).

• Cheapest gas: Laramie and Billings usually have the lowest prices.
• Timing: avoid fueling in small towns like Thermopolis or Worland if possible; they can be 20–30 cents higher per gallon.
• Electric vehicle charging: limited; Level 2 chargers exist in Laramie, Rawlins, Buffalo, Sheridan, Billings, and Missoula. Plan for 2–3 charging stops if driving an EV.

Road Quality and Hazards

I-80 and I-90 are well-maintained interstate highways. The stretch over the Bighorn Mountains on US-16 is a winding two-lane road with steep grades (up to 8%) and sharp curves; suitable for cars but challenging for large RVs. Watch for wildlife (deer, elk, moose) especially at dawn/dusk.

Natural Landscapes & Attractions

The route showcases a stunning diversity: the sagebrush sea of the Wyoming Basin, the red-rock badlands near Thermopolis, the alpine forests of the Bighorn Mountains, and the fertile valleys of Montana's Yellowstone and Gallatin rivers. Must-see natural stops include:

• Wind River Canyon (between Shoshoni and Thermopolis): a 13-mile scenic gorge with dramatic cliffs and a train tunnel.
• Hot Springs State Park (Thermopolis): free public hot springs pools (100°F) open year-round.
• Bighorn National Forest: offers hiking, fishing, and the Cloud Peak Skyway (US-16) viewpoint.
• Pompeys Pillar National Monument (near Billings): a rock formation with William Clark's 1806 signature.
• Boulder River Falls (south of Big Timber, MT): a short hike to a 100-foot waterfall.

UNESCO World Heritage Sites

While there are no UNESCO World Heritage Sites directly on the route, Yellowstone National Park (a UNESCO site) is a 1.5-hour detour from Bozeman via US-191 S. Additionally, the nearby Bighorn Medicine Wheel (in Bighorn National Forest) is a National Historic Landmark with cultural significance.

Local Commerce & Culture

Thermopolis is home to the Wyoming Dinosaur Center, a top dinosaur museum. Buffalo, WY, has a historic downtown with the Occidental Hotel (built 1880). In Montana, Bozeman offers a vibrant downtown with art galleries and craft breweries, while Missoula prides itself on a literary and music scene (the University of Montana). For unique souvenirs, look for local bison products, huckleberry jam, and Native American beadwork.

Culinary Infrastructure

From classic Wyoming steakhouses to farm-to-table Montana bistros, the route has diverse but sparse options. Key food stops:

• Laramie: Altitude Chophouse (upscale) or J's Prairie (family diner).
• Thermopolis: Silver Dollar Bar & Grill for comfort food.
• Buffalo: Winchester Steakhouse (historic) or Cowboy Cafe for breakfast.
• Sheridan: The Wolf Hotel (historic bar) for burgers.
• Hardin, MT: The Busted Nut Café (ginormous cinnamon rolls).
• Billings: Uberbrew (microbrewery) or Walkers Grill (American).
• Bozeman: Plonk (wine bar) or The Nova Café (breakfast).
• Missoula: Masala (Indian) or Biga Pizza (wood-fired).